Quarterly report pursuant to Section 13 or 15(d)

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

v3.22.2.2
Capital Stock, Stock Plans and Stock-Based Compensation (Details Narrative) - USD ($)
1 Months Ended 9 Months Ended
Jul. 21, 2022
Apr. 02, 2019
Jul. 27, 2017
May 31, 2018
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Common stock, par value         $ 0.001   $ 0.001
Proceeds from stock options exercised         $ 13,000  
Common Stock [Member]              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Stock options, exercise price         $ 3.97    
Issuance of common stock upon exercise of options         16,526    
Number of stock option purchased         50,000    
Ferguson Stock Option [Member] | Second Milestone [Member]              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Options to purchase shares     30,000        
Ferguson Stock Option [Member] | Third Milestone [Member]              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Options to purchase shares     60,000        
Share-Based Payment Arrangement, Option [Member] | Common Stock [Member]              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Stock options, exercise price         $ 5.50    
Issuance of common stock upon exercise of options         2,400    
Number of stock option purchased         2,400    
Proceeds from stock options exercised         $ 13,000    
Robert Ferguson [Member]              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Issuance of common stock upon exercise of options       10,000      
Unrecognized compensation cost related to unvested options consultant         $ 289,000    
Remaining stock option         90,000    
Loans payable   $ 2,500,000          
Warrant to purchase   60,000          
Warrants exercise price   $ 3.51          
Warrant exercisable, description   The warrant expires on April 1, 2024 and remains outstanding at September 30, 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.          
Employee and Directors [Member]              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Unrecognized compensation cost related to unvested options consultant         $ 1,396,000    
Weighted average term for unrecognized and unvested option to be recognized         3 years 9 months 18 days    
2003 Stock Option Plan [Member] | Dr. Louis Centofanti [Member]              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Number of stock option shares granted 10,000            
Common stock, par value $ 0.001            
Stok option granted contractual term (years) 10 years            
Annual vesting, description one-fourth vesting annually over a four-year period.            
Stock options, exercise price $ 5.15            
2017 Stock Option Plan [Member]              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Number of stock option shares granted 24,000            
Stok option granted contractual term (years) 6 years            
Stock options, exercise price $ 5.34            
Vesting period 5 years            
2017 Stock Option Plan [Member] | Consultant [Member]              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Number of stock option shares granted     100,000        
Stock options, exercise price     $ 3.65        
2003 Outside Directors Stock Option Plan [Member] | Common Stock [Member]              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Issuance of common stock for services, shares         64,272    
Allocated share-based compensation expense         $ 359,000