CAPITAL STOCK, STOCK PLANS, WARRANTS AND STOCK BASED COMPENSATION (Details Narrative) - USD ($)
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1 Months Ended |
12 Months Ended |
Dec. 31, 2022 |
Jul. 21, 2022 |
Oct. 14, 2021 |
Oct. 14, 2021 |
Sep. 30, 2021 |
Jul. 20, 2021 |
May 04, 2021 |
Apr. 02, 2019 |
Jul. 27, 2017 |
May 31, 2018 |
Dec. 31, 2022 |
Dec. 31, 2021 |
| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Common stock, shares authorized |
30,000,000
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30,000,000
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30,000,000
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| Number of stock option shares granted |
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94,000
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| Proceeds from stock options exercised |
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$ 13,000
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| Common Stock [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Stock options, exercise price |
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$ 3.97
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| Issuance of stock upon exercise of options, shares |
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16,526
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| Number of stock option purchased |
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50,000
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| Share-Based Payment Arrangement, Option [Member] | Common Stock [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Stock options, exercise price |
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$ 5.50
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$ 3.15
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| Issuance of stock upon exercise of options, shares |
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2,400
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290
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| Number of stock option purchased |
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2,400
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500
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| Proceeds from stock options exercised |
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$ 13,000
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| Subscription Agreements [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Number of sale shares issuance |
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1,000,000
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| Common Stock [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Issuance of stock upon exercise of options, shares |
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18,926
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290
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| Stock issued during period for services, shares |
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90,920
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60,723
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| Number of common shares reserved for future issuance |
1,018,400
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1,018,400
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| Second Milestone [Member] | Ferguson Stock Option [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Options to purchase shares |
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30,000
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| Third Milestone [Member] | Ferguson Stock Option [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Options to purchase shares |
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60,000
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| Employee and Directors [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Unrecognized compensation cost related to unvested options consultant |
$ 1,293,000
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$ 1,293,000
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| Weighted average term for unrecognized and unvested option to be recognized |
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3 years 7 months 6 days
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| Robert Ferguson [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Issuance of stock upon exercise of options, shares |
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10,000
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| Unrecognized compensation cost related to unvested options consultant |
$ 39,000
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$ 39,000
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| Number of shares forfeited |
30,000
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| Remaining stock option |
60,000
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60,000
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| Loans payable |
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$ 2,500,000
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| Warrant to purchase |
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60,000
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| Warrants exercise price |
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$ 3.51
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| Warrant exercisable, description |
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The warrant expires on April 1, 2024 and remains outstanding at December 31, 2022. Upon Mr. Ferguson’s death,
the warrant is now held by Mr. Ferguson’s estate. The Ferguson Loan was paid-in-full in December 2020.
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| 2003 Stock Plan [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Common stock, shares authorized |
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500,000
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| Stock options granted vesting period |
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6 months
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| Vesting percentage |
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25.00%
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| 2003 Stock Plan [Member] | Director [Member] | Minimum [Member] | Election [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Shares remaining available for issuance |
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6,000
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| 2003 Stock Plan [Member] | Director [Member] | Minimum [Member] | Reelection [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Shares remaining available for issuance |
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2,400
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| 2003 Stock Plan [Member] | Director [Member] | Maximum [Member] | Election [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Shares remaining available for issuance |
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20,000
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| 2003 Stock Plan [Member] | Director [Member] | Maximum [Member] | Reelection [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Shares remaining available for issuance |
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10,000
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| 2003 Outside Directors Stock Plan [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Shares remaining available for issuance |
448,534
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448,534
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| Percentage of directors fees, description |
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The 2003
Plan continued to provide for the issuance to each Eligible Director a number of shares of the Company’s Common Stock in lieu of
65% or 100% (based on option elected by each director) of the fee payable to the Eligible Director for services rendered as a member
of the Board. The number of shares issued is determined at 75% of the market value as defined in the 2003 Plan (the Company recognizes
100% of the market value of the shares issued).
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| 2003 Outside Directors Stock Plan [Member] | Common Stock [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Number of shares available for issuance |
1,600,000
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1,600,000
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| 2017 Stock Option Plan [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Shares remaining available for issuance |
353,000
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353,000
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| Stock option granted, description |
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The term of each stock option granted under the 2017 Plan shall be fixed by the Compensation and Stock Option
Committee (the “Compensation Committee”), but no stock options will be exercisable more than ten years after the grant date,
or in the case of an ISO granted to a 10% stockholder, five years after the grant date. The exercise price of any ISO granted under the
2017 Plan to an individual who is not a 10% stockholder at the time of the grant shall not be less than the fair market value of the
shares at the time of the grant, and the exercise price of any ISO granted to a 10% stockholder shall not be less than 110% of the fair
market value at the time of grant.
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| 2017 Stock Option Plan [Member] | Officers and Employees [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Number of shares available for issuance |
1,140,000
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1,140,000
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| 2017 Stock Option Plan [Member] | Consultant [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Number of stock option shares granted |
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100,000
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| Stock options, exercise price |
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$ 3.65
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| 2003 Stock Option Plan [Member] | Dr. Louis Centofanti [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Number of stock option shares granted |
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10,000
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| Stock options granted contractual term |
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10 years
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| Vesting, description |
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one-fourth vesting annually over a four-year
period.
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| Stock options, exercise price |
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$ 5.15
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| 2017 Stock Option Plan [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Number of stock option shares granted |
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24,000
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| Stock options granted contractual term |
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6 years
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| Vesting, description |
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one-fifth vesting
annually over a five-year period.
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| Stock options, exercise price |
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$ 5.34
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| 2017 Stock Plan [Member] | Incentive Stock Option Agreement [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Stock options granted contractual term |
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6 years
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| Vesting, description |
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one-fifth yearly vesting over
a five-year period.
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| Exercise price |
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$ 7.005
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| 2017 Stock Plan [Member] | Maximum [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Number of stock option shares granted |
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305,000
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| 2017 Stock Plan [Member] | Chief Executive Officer [Member] | Incentive Stock Option Agreement [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Number of stock option shares granted |
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50,000
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| 2017 Stock Plan [Member] | Chief Financial Officer [Member] | Incentive Stock Option Agreement [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Number of stock option shares granted |
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25,000
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| 2017 Stock Plan [Member] | EVP of Strategic Initiatives [Member] | Incentive Stock Option Agreement [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Number of stock option shares granted |
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20,000
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| 2017 Stock Plan [Member] | EVP of Waste Treatment Operations [Member] | Incentive Stock Option Agreement [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Number of stock option shares granted |
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25,000
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| 2017 Stock Plan [Member] | EVP of Nuclear and Technical Services [Member] | Incentive Stock Option Agreement [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Number of stock option shares granted |
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25,000
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| 2003 Plan [Member] | NQSO [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Stock options granted vesting period |
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6 months
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| Number of stock option shares granted |
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10,000
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6,000
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| Stock options granted contractual term |
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10 years
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10 years
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| Vesting, description |
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one-fourth vesting annually over a four-year period.
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| Stock options, exercise price |
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$ 5.93
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$ 7.50
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| 2003 Outside Directors Stock Option Plan [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Percentage of directors fees, description |
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As a member of the Board, each director elects to receive either 65% or 100% of the
director’s fee in shares of our Common Stock. The number of shares received is calculated based on 75% of the fair market value
of our Common Stock determined on the business day immediately preceding the date that the quarterly fee is due.
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| 2003 Outside Directors Stock Option Plan [Member] | Common Stock [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Stock issued during period for services, shares |
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90,920
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60,723
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| 2003 Outside Directors Stock Plan [Member] | Portion of Director Fee Earned in Common Stock [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Allocated share-based compensation expense |
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$ 477,000
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$ 467,000
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