Quarterly report pursuant to Section 13 or 15(d)

Capital Stock, Stock Plans and Stock Based Compensation (Details Narrative)

Capital Stock, Stock Plans and Stock Based Compensation (Details Narrative) - USD ($)					1 Months Ended	3 Months Ended
	Mar. 27, 2020	Feb. 04, 2020	Jan. 17, 2019	Jul. 27, 2017	May 31, 2018	Mar. 31, 2020	Mar. 31, 2019
Stock options, exercise price						$ 4.20
Unrecognized compensation cost related to unvested options employee and directors						$ 383,000
Unrecognized compensation expected term						2 years 8 months 12 days
Proceeds from exercise of stock options						$ 6,000
Ferguson Stock Option [Member]
Options to purchase shares of common stock	60,000		30,000
Options extended date description	The Compensation Committee and the Board approved another amendment to the Ferguson Stock Option whereby the vesting date for the second milestone was further extended to December 31, 2021 from March 31, 2020 and the vesting date for the third milestone for the purchase of up to 60,000 shares of the Company's Common Stock was extended to December 31, 2022 from January 27, 2021.		The Company's Common Stock was extended to March 31, 2020 from January 27, 2019
Robert Ferguson [Member]
Number of options exercised					10,000
Unrecognized compensation cost related to unvested options employee and directors						$ 280,000
Remaining stock option						90,000
2013 Outside Directors Stock Plan [Member]
Number of stock option shares granted		6,000
Stock options granted contractual term		10 years
Stock options granted vesting period		6 months
Stock options, exercise price		$ 7.00
2017 Stock Option Plan [Member]
Number of stock option shares granted			105,000
Stock options granted contractual term			6 years
Stock options, exercise price			$ 3.15
2017 Stock Option Plan [Member] \| One-Fifth Vesting [Member]
Stock options granted vesting period			5 years
2017 Stock Option Plan [Member] \| CEO [Member]
Number of stock option shares granted			25,000
2017 Stock Option Plan [Member] \| CFO [Member]
Number of stock option shares granted			15,000
2017 Stock Option Plan [Member] \| EVP of Strategic Initiatives [Member]
Number of stock option shares granted			15,000
2017 Stock Option Plan [Member] \| Consultant [Member]
Number of stock option shares granted				100,000
Stock options, exercise price				$ 3.65
2003 Outside Directors Stock Plan [Member]
Stock issued during period for services, shares						5,128
Allocated share-based compensation expense						$ 53,000
2017 Stock Option Plan [Member] \| Employee [Member]
Number of options exercised						2,000
Proceeds from exercise of stock options						$ 6,300
2017 Stock Option Plan [Member] \| Former Employee [Member]
Number of shares issued from option exercise (cashless)						1,643
2017 Stock Option Plan [Member] \| Former Employee [Member] \| First Separate Options [Member]
Stock options, exercise price						$ 3.60
Number of options exercised						8,000
2017 Stock Option Plan [Member] \| Former Employee [Member] \| Second Separate Options [Member]
Stock options, exercise price						$ 3.15
Number of options exercised						2,000