OTHER COMPREHENSIVE INCOME (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Components of accumulated other comprehensive income (loss), net of tax [Abstract]
Net unrealized gain on securities available for sale		$ 1,979	$ 3,339
Tax effect		673	1,135
Net -of-tax amount		1,306	2,204
Unrecognized pension costs		(4,088)	(3,697)
Tax effect		(1,390)	(1,257)
Net -of-tax amount		(2,698)	(2,440)
Total accumulated other comprehensive loss		(1,392)	(236)
Accumulated Other Comprehensive Income Loss [Line Items]
Balance		119,760	100,528	$ 92,056
Other comprehensive income before reclassifications (net of tax)		(1,133)	(855)	2,365
Amounts reclassified from accumulated other comprehensive income (loss) (net of tax)		(23)	(148)	(373)
Net other comprehensive income (loss)		(1,156)	(1,003)	1,992
Balance		123,268	119,760	100,528
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance		(236)	767	(1,225)
Net other comprehensive income (loss)		(1,156)	(1,003)	1,992
Balance		(1,392)	(236)	767
Unrealized Gains (Loss) on Available For Sale Securities [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance	[1]	2,204	3,093	(108)
Other comprehensive income before reclassifications (net of tax)	[1]	(730)	(606)	3,608
Amounts reclassified from accumulated other comprehensive income (loss) (net of tax)	[1]	(168)	(283)	(407)
Net other comprehensive income (loss)	[1]	(898)	(889)	3,201
Balance	[1]	1,306	2,204	3,093
Defined Benefit Pension Items [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance	[1]	(2,440)	(2,326)	(1,117)
Other comprehensive income before reclassifications (net of tax)	[1]	(403)	(249)	(1,243)
Amounts reclassified from accumulated other comprehensive income (loss) (net of tax)	[1]	145	135	34
Net other comprehensive income (loss)	[1]	(258)	(114)	(1,209)
Balance	[1]	$ (2,698)	$ (2,440)	$ (2,326)

[1] Amounts in parentheses indicate debits on the consolidated balance sheet.