Stockholders' Equity - Stock Options and a Summary of Activity (Details)	3 Months Ended
	Mar. 31, 2022 $ / shares shares
Number of Options
Outstanding at beginning of period (in shares) | shares	267,109
Granted (in shares) | shares	60,000
Canceled/forfeited (in shares) | shares	(58,100)
Outstanding at end of period (in shares) | shares	269,009
Vested and expected to vest at period end (in shares) | shares	229,323
Exercisable at period end (in shares) | shares	113,027
Weighted Average Exercise Price Per Share
Outstanding at beginning of period (USD per share) | $ / shares	$ 3.46
Granted (USD per share) | $ / shares	1.48
Canceled/forfeited (USD per share) | $ / shares	2.88
Outstanding at end of period (USD per share) | $ / shares	3.15
Vested and expected to vest at period end (USD per share) | $ / shares	3.19
Exercisable at period end (USD per share) | $ / shares	$ 3.37
Weighted Average Remaining Contractual Life (in years)
Outstanding at end of period	8 years 4 months 24 days
Vested and expected to vest at period end	8 years 2 months 12 days
Exercisable at period end	7 years 6 months