EARNINGS PER SHARE (Computation of Basic and Diluted Earnings per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Basic
Net Income (Loss)	$ 15,561	$ 23,189	$ 40,637	$ 42,210
Less: Earnings allocated to participating securities	(82)	(63)	(170)	(85)
Net income available to common stockholders	$ 15,479	$ 23,126	$ 40,467	$ 42,125
Weighted average common shares outstanding including participating securities	11,195,461	10,961,697	11,137,381	10,947,829
Less: Weighted average participating securities	(59,200)	(30,000)	(46,686)	(22,111)
Weighted average common shares outstanding	11,136,261	10,931,697	11,090,695	10,925,718
Basic earnings (in dollars per share)	$ 1.39	$ 2.12	$ 3.65	$ 3.86
Diluted
Net income allocated to common shareholders	$ 15,479	$ 23,126	$ 40,467	$ 42,125
Weighted average common shares outstanding for basic earnings per common share	11,136,261	10,931,697	11,090,695	10,925,718
Average shares and dilutive potential common shares	11,278,405	11,189,807	11,271,150	11,208,992
Diluted earnings (in dollars per share)	$ 1.37	$ 2.07	$ 3.59	$ 3.76
Employee Stock Option [Member]
Diluted
Add: Dilutive effects of assumed exercise of stock options	88,591	180,787	123,773	186,364
Performance-Based Restricted Stock Units (PRSUs)
Diluted
Dilutive effects of assumed vesting units	53,553	52,004	56,682	63,980
Restricted stock awards
Calculations of basic and diluted earnings per share
Number of antidilutive shares not considered in computing diluted earnings per share	262,624		248,231
Diluted
Dilutive effects of assumed vesting units		25,319		32,930