STOCK COMPENSATION - ACTIVITY (Details) - Stock Option Plans $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2018 USD ($) $ / shares shares
Shares
Outstanding, beginning of year (in shares) | shares	600
Exercised (in shares) | shares	(600)
Weighted Average Exercise Price
Outstanding, beginning of year (in dollars per share) | $ / shares	$ 31.00
Exercised (in dollars per share) | $ / shares	$ 31.00
Weighted Average Remaining Contractual Term
Outstanding, end of period	0 months
Vested and expected to vest	0 months
Exercisable, end of period	0 months
Additional disclosures
Total unrecognized compensation cost related to nonvested stock options granted | $	$ 0