STOCKHOLDERS' EQUITY - Company's Option Activity (Details) - Share-Based Payment Arrangement, Option [Member] - $ / shares	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Options Outstanding Available For Grant at the beginning	644,314	136,750
Options Outstanding at the beginning (in dollars per share)	$ 7.11	$ 4.96
Weighted-Average Grant Date Fair Value Beginning	$ 5.03	$ 2.27
Weighted-Average Remaining Contractual Life (in years)	8 years 5 months 19 days	9 years 11 months 12 days
Options granted	189,000	309,564
Granted (in dollars per share)	$ 1.99	$ 7.80
Options granted	$ 1.35	$ 5.06
Share based Compensation Arrangement By Share based Payment Award Options Granted Weighted Average Remaining Contractual Term	10 years	10 years
Options granted		293,000
Granted (in dollars per share)		$ 7.82
Options granted		$ 5.82
Share based Compensation Arrangement By Share based Payment Award Options Granted Weighted Average Remaining Contractual Term		10 years
Options forfeited/cancelled		(95,000)
Weighted Average Exercise Price Forfeited		$ 4.96
Weighted-Average Grant Date Fair Value Forfeited		$ 3.73
Option exercised
Options exercised
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant	833,314	644,314
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price, Ending Balance	$ 5.95	$ 7.11
Share-Based Compensation Arrangement by Share-Based Payment Award, Option, Nonvested, Weighted Average Exercise Price, Ending Balance	$ 4.30	$ 5.03
Weighted average Remaining Contractual Life In Years	9 years 3 months
Vested and Exercisable	178,641
Vested and Exercisable	$ 6.84