STOCK-BASED COMPENSATION PLANS (Details 5) - Restricted Stock [Member] - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of Restricted Stock, Non-vested beginning of year	55,250	54,050	47,500
Shares of Restricted Stock, Issued	26,900	21,900	24,400
Shares of Restricted Stock, Vested	(22,025)	(20,700)	(17,850)
Shares of Restricted Stock, Forfeited	(1,625)	0	0
Shares of Restricted Stock, Non-vested end of year	58,500	55,250	54,050
Weighted Average Grant Date Fair Value, Non-vested beginning of year (in dollars per share)	$ 26.45	$ 26.58	$ 25.86
Weighted Average Grant Date Fair Value, Issued (in dollars per share)	25.51	25.64	27.04
Weighted Average Grant Date Fair Value, Vested (in dollars per share)	26.26	25.94	25.31
Weighted Average Grant Date Fair Value, Forfeited (in dollars per share)	26.30	0	0
Weighted Average Grant Date Fair Value, Non-vested end of year (in dollars per share)	$ 26.09	$ 26.45	$ 26.58