SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) segment $ / shares shares	Dec. 31, 2020 USD ($)	Dec. 08, 2021 $ / shares	Dec. 22, 2020 $ / shares	Dec. 31, 2019 $ / shares
Unrecognized Tax Benefits	$ 0	$ 0
Number of reportable segment | segment	1
Provision for impairment	$ 0	0
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	$ 4.31		$ 1.90	$ 4.31	$ 6.50
Deferred Offering Costs	$ 2,900	3,900
Operating expenses as a result of error correction relating to the capitalization of general advertising and marketing expenses	$ 2,400
Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount | shares	310,074
Warrant [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount | shares	7,179,000
Prepaid Expenses and Other Current Assets [Member]
Deferred Offering Costs	$ 5,100	$ 3,000