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INCOME TAXES - Narratives (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Contingency
Share-based compensation, permanent reconciling amount		$ 15,300,000
Deferred tax asset, valuation allowance	$ 2,450,000	0
NOL carryforward, federal	0	100,000
NOL carryforward, state	3,100,000	3,700,000
Accrual for uncertain tax positions	200,000	700,000
Unrecognized tax benefits	1,656,000	1,329,000	$ 1,253,000
Internal Revenue Service (IRS)
Income Tax Contingency
Share-based compensation, permanent reconciling amount	15,500,000	2,400,000	$ (8,500,000)
Federal
Income Tax Contingency
Tax credit, research	1,000,000	200,000
State
Income Tax Contingency
Tax credit, research	$ 1,000,000	$ 600,000

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Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all domestic and foreign income tax obligations due beyond one year or the operating cycle, whichever is longer. Alternate captions include income taxes payable, noncurrent.

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