(LOSS) EARNINGS PER SHARE - Reconciliation of Weighted Average Shares used to Determine Basic and Diluted Earnings Per Share (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Earnings Per Share [Abstract]
Basic average common shares outstanding (shares)	17,379	17,271	17,204
Effect of dilutive options and restricted stock awards (shares)	0	0	126
Diluted average common shares outstanding (shares)	17,379	17,271	17,330