SHAREHOLDERS' EQUITY - Stock options activity (Details)	6 Months Ended
	Jun. 30, 2023 USD ($) $ / shares shares
Aggregate Intrinsic Value
Options outstanding, aggregate intrinsic value | $
Options exercisable, aggregate intrinsic value | $
Stock options
Number of Options
Outstanding at beginning of year (in shares) | shares	184,165
Exercised (in shares) | shares	(5,760)
Forfeited or expired (in shares) | shares	(8,180)
Outstanding at end of period (in shares) | shares	170,225
Options fully vested / exercisable at end of period (in shares) | shares	170,225
Weighted Average Exercise Price
Outstanding at beginning of year (in dollars per share) | $ / shares	$ 22.76
Exercised (in dollars per share) | $ / shares	20.00
Forfeited or expired (in dollars per share) | $ / shares	20.31
Outstanding at end of year (in dollars per share) | $ / shares	23.04
Options fully vested / exercisable (in dollars per share) | $ / shares	$ 23.04
Weighted Average Remaining Contractual Term
Outstanding at end of year (in years)	1 year 8 months 12 days
Options fully vested / exercisable (in years)	1 year 8 months 12 days