STOCK COMPENSATION PLAN (Summary of the Status of the Stock Option Plan) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2018 $ / shares shares	Sep. 30, 2017 shares	Sep. 30, 2018 item $ / shares shares	Sep. 30, 2017 shares
Number of Options
Outstanding, beginning of period | shares			271,500
Granted | shares	0	0	0	0
Exercised | shares			(5,000)
Cancelled/forfeited | shares			0
Outstanding, end of period | shares	266,500		266,500
Options vested and exercisable at end of period | shares	266,500		266,500
Weighted Average Exercise Price
Outstanding, beginning of period | $ / shares			$ 19.79
Granted | $ / shares			0
Exercised | $ / shares			30.00
Cancelled/forfeited | $ / shares			0.00
Outstanding, end of period | $ / shares	$ 19.60		$ 19.60
Number of share-based compensation plans | item			2
Options vested and exercisable at end of period | $ / shares	$ 19.60		$ 19.60
Weighted average remaining contractual life (years)			4 years 10 months 28 days