Schedule of option activity (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) $ / shares shares
Share-Based Payment Arrangement [Abstract]
Shares Outstanding, Beginning	3,193,216
Shares Outstanding Beginning, (per share) | $ / shares	$ 1.18
Granted	768,400
Granted (per share) | $ / shares	$ 1.61
Exercised	(414,455)
Exercised (per share) | $ / shares	$ 0.44
Forfeited or expired	(103,500)
Forfeited or expired (per share) | $ / shares	$ 2.50
Shares Outstanding, Beginning	3,443,661
Shares Outstanding Beginning, (per share) | $ / shares	$ 1.33
Weighted Average Remaining Contractual Term, Outstanding, end	4 years 10 months 24 days
Shares Outstanding (Intrinsic value) | $	$ 1,230
Shares Exercisable	2,193,254
Shares Exercisable, (per share) | $ / shares	$ 0.86
Shares Exercisable (years)	4 years 1 month 6 days
Shares Exercisable (Intrinsic value) | $	$ 1,126
Shares available for grant	1,119,100