Quarterly report pursuant to Section 13 or 15(d)

Stock Based Awards (Details Narrative)

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Stock Based Awards (Details Narrative) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Jun. 16, 2021
Jun. 15, 2021
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]            
Shares reserved for issuance 833,000 847,000 833,000 847,000    
Shares available for grant 278,000 484,000 278,000 484,000    
Equity-based compensation expense $ 148,000 $ 179,000 $ 305,000 $ 241,000    
Unrecognized compensation expense $ 402,000   $ 402,000      
Unrecognized compensation expense, weighted average period     10 months 24 days      
Options vested or expected to vest, outstanding shares 555,000   555,000      
Options vested or expected to vest, aggregate intrinsic value $ 0   $ 0      
Options vested or expected to vest, weighted average exercise price $ 10.40   $ 10.40      
Options vested or expected to vest, weighted average remaining contractual term     7 years 8 months 12 days      
Options vested and exercisable, outstanding shares 307,000   307,000      
Options vested and exercisable, aggregate intrinsic value $ 0   $ 0      
Options vested and exercisable, weighted-average exercise price $ 16.33   $ 16.33      
Options vested and exercisable, weighted average remaining contractual term     6 years 9 months 18 days      
Common stock closing price per share $ 2.33   $ 2.33      
2015 Equity Incentive Plan [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]            
Shares reserved for issuance 833,333   833,333      
Maximum term of options granted     10 years      
Common stock authorized for issuance         833,333 416,667
Shares available for grant 278,000   278,000