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SHARE-BASED PAYMENTS - Schedule of Share-based Compensation, Restricted Stock, Restricted Stock Units Activity and SAR's (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expense	$ 513	$ 670	$ 1,703	$ 2,370
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expense	42	134	281	508
Weighted Average Grant Date Fair Value
Unrecognized Compensation Costs Related To Unvested Stock Options			100
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expense	$ 409	306	$ 1,162	$ 986
Number of Shares
Granted, nonvested, number of shares (in shares)			440,000	740,000
Weighted Average Grant Date Fair Value
Unrecognized Compensation Costs Related To R S U Awards			$ 1,080
Restricted Stock Units (RSUs) | Equity Option
Number of Shares
Number of nonvested shares, beginning of period (in shares)			1,094,056
Granted, nonvested, number of shares (in shares)			441,241
Vested, number of shares (in shares)			(635,233)
Nonvested options forfeited, number of shares (in shares)			0
Number of nonvested shares, end of period (in shares)	900,064		900,064		1,094,056
Weighted Average Grant Date Fair Value
Nonvested, weighted average grant date fair value, beginning of period (in dollars per share)			$ 1.98
Granted, nonvested, weighted average grant date fair value (in dollars per share)			3.89
Vested, weighted average grant date fair value (in dollars per share)			1.94
Nonvested options forfeited, weighted average grant date fair value (in dollars per share)			0
Nonvested, weighted average grant date fair value, end of period (in dollars per share)	$ 2.94		$ 2.94		$ 1.98
Stock Appreciation Rights (SARs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expense	$ 62	$ 230	$ 260	$ 876
Number of Shares
Number of nonvested shares, beginning of period (in shares)			2.92	2.92	2.92
Granted, nonvested, number of shares (in shares)			0		0
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Exercised			2.92		0
Nonvested options forfeited, number of shares (in shares)			0		2.92
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Expirations			0		0
Number of nonvested shares, end of period (in shares)	2.92		2.92		2.92
Weighted Average Grant Date Fair Value
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Exercised, Weighted Average Exercise Price			$ (17,793)		$ 0
Nonvested, weighted average grant date fair value, beginning of period (in dollars per share)			1,720,623	$ 2,165,509	2,165,509
Granted, nonvested, weighted average grant date fair value (in dollars per share)			0		0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Expired, Weighted Average Grant Date Fair			0		0
Nonvested options forfeited, weighted average grant date fair value (in dollars per share)			0		(444,886)
Nonvested, weighted average grant date fair value, end of period (in dollars per share)	$ 1,702,830		$ 1,702,830		$ 1,720,623
Unrecognized Compensation Costs Related To R S U Awards			$ 10
Stock Appreciation Rights (SARs) | Equity Option
Number of Shares
Number of nonvested shares, beginning of period (in shares)			1,720,623
Granted, nonvested, number of shares (in shares)			0
Vested, number of shares (in shares)			(573,537)
Nonvested options forfeited, number of shares (in shares)			0
Number of nonvested shares, end of period (in shares)	1,147,086		1,147,086		1,720,623
Weighted Average Grant Date Fair Value
Nonvested, weighted average grant date fair value, beginning of period (in dollars per share)			$ 1.25
Granted, nonvested, weighted average grant date fair value (in dollars per share)			0
Vested, weighted average grant date fair value (in dollars per share)			1.25
Nonvested options forfeited, weighted average grant date fair value (in dollars per share)			0
Nonvested, weighted average grant date fair value, end of period (in dollars per share)	$ 1.25		$ 1.25		$ 1.25

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