EARNINGS (LOSS) PER SHARE - Components and Results of Operations and Earnings (Loss) Per Common Share Calculations (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share [Abstract]
Net (loss) income available to common shareholders - used in calculating basic EPS	$ 8,794	$ 250	$ 25,847	$ (8,403)
Adjustment for private warrant liability	0	0	17,989	0
Net income (loss) - used in diluted EPS, diluted	$ 8,794	$ 250	$ 7,858	$ (8,403)
Weighted average common shares outstanding - basic (in shares)	11,900	6,123	11,534	6,123
Weighted average common shares outstanding - diluted (in shares)	11,904	6,123	12,059	6,123
Basic (loss) income per common share (in dollars per share)	$ 0.74	$ 0.04	$ 2.24	$ (1.37)
Diluted (loss) income per common share (in dollars per share)	$ 0.74	$ 0.04	$ 0.65	$ (1.37)