STOCK INCENTIVE PLAN - Restricted Stock Units (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Restricted Stock Unit Transactions - Shares
Nonvested, beginning balance (in shares)	160,000
Granted (in shares)	18,835	160,000
Vested (in shares)	(32,000)
Nonvested, ending balance (in shares)	146,835	160,000
Restricted Stock Unit Transactions - Weighted average grant date fair value
Nonvested, beginning balance (in dollar per share)	$ 29.95
Granted (in dollar per share)	33.98	$ 29.95
Vested (in dollar per share)	(29.95)
Nonvested, ending balance (in dollar per share)	$ 33.98	$ 29.95
Restricted share unit activity activity - Additional data
Total compensation cost, net of estimated forfeitures, related to nonvested restricted share unit awards not yet recognized, pre tax	$ 3,154	$ 4,392
Weighted-average period in years over which restricted share and share unit cost is expected to be recognized (in years)	3 years 2 months 12 days	4 years 2 months 12 days	0 years
Total fair value of shares vested during the year	$ 958
Executive Officer
Restricted Stock Unit Transactions - Shares
Vesting period of options	5 years
Director
Restricted Stock Unit Transactions - Shares
Vesting period of options	1 year
Equity Incentive Plan 2016
Restricted Stock Unit Transactions - Shares
Number of shares of common stock are available for issuance	800,000