EARNINGS PER SHARE - Reconciliation (Details) - $ / shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Shares
Basic (in shares)	18,999	18,640	18,952	18,573
Effect of dilutive stock options (in shares)	504	783	607	822
Diluted (in shares)	19,503	19,423	19,559	19,395
Per Share Amount
Basic (in dollars per share)	$ 1.45	$ 1.20	$ 3.43	$ 2.62
Effect of dilutive stock options (in dollars per share)	(0.04)	(0.05)	(0.10)	(0.11)
Diluted (in dollars per share)	$ 1.41	$ 1.15	$ 3.33	$ 2.51