The following table summarizes the outstanding stock option activity for the three months ended March 31, 2022: (Details)	3 Months Ended
	Mar. 31, 2022 $ / shares shares
Non Plan Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total outstanding and vested and expected to vest at beginning | shares
Options outstanding, weighted average exercise price, beginning | $ / shares
Options granted | shares	130,000
Options granted, weighted average exercise price | $ / shares	$ 0.62
Options canceled/expired | shares
Options canceled/expired, weighted average exercise price | $ / shares
Total outstanding and vested and expected to vest at ending | shares	130,000
Options outstanding, weighted average exercise price, ending balance | $ / shares	$ 0.62
Options outstanding, weighted average remaining contractual term at ending	9 years 10 months 17 days
Vested at ending | shares	25,000
Options vested, weighted average exercise price at ending | $ / shares	$ 0.62
Options vested, weighted average remaining contractual term	9 years 10 months 17 days
2009 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total outstanding and vested and expected to vest at beginning | shares	4,985,415
Options outstanding, weighted average exercise price, beginning | $ / shares	$ 4.21
Options outstanding, weighted average remaining contractual term at beginning	4 years 18 days
Options canceled/expired | shares	(199,273)
Options canceled/expired, weighted average exercise price | $ / shares	$ 4.61
Total outstanding and vested and expected to vest at ending | shares	4,786,142
Options outstanding, weighted average exercise price, ending balance | $ / shares	$ 4.19
Options outstanding, weighted average remaining contractual term at ending	3 years 11 months 19 days
Vested at ending | shares	4,781,209
Options vested, weighted average exercise price at ending | $ / shares	$ 4.19
Options vested, weighted average remaining contractual term	3 years 11 months 19 days