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Stockholders' Equity - Inducement Plan - Stock Option Activity (Details) - Inducement Plan - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
OUTSTANDING OPTIONS
Outstanding at beginning of period	100,600
Options granted	1,747,600
Options exercised	(10,092)
Options forfeited	(24,508)
Outstanding at end of period	1,813,600	100,600
WEIGHTED-AVERAGE EXERCISE PRICE
Outstanding at beginning of period	$ 3.09
Options granted	2.02
Options exercised	2.06
Options forfeited	2.06
Outstanding at end of period	$ 2.08	$ 3.09
VESTED AND EXPECTED TO VEST
Outstanding options	1,264,400
Weighted-Average Exercise Price	$ 2.10
Weighted-Average Remaining Contractual Term	9 years 7 months 6 days
ADDITIONAL DISCLOSURES
Outstanding options exercisable at end of period	22,879
Weighted-average exercise price exercisable at end of period	$ 3.58
Weighted-average contractual term outstanding	9 years 7 months 6 days	9 years 6 months
Weighted-average contractual term (years) exercisable	8 years 7 months 6 days

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