INCOME TAXES - Tax Effect of Deferred Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Tax effects of item which gives rise to deferred taxes
Deferred compensation			$ 725	$ 612
Net unrealized loss (gain) on securities available for sale			21	(29)
Depreciation and amortization			(543)	(363)
Allowance for loan losses			1,042	964
Mortgage servicing rights			(94)	(207)
Other, net			182	88
Net deferred tax asset	$ 1,065	$ 635	$ 1,333	$ 1,065
Summary of change in net deferred tax asset
Balance at beginning of period	1,065	635
Deferred tax benefit	218	378
Deferred tax effects of net unrealized (gain) loss on securities available for sale	50	52
Balance at end of period	$ 1,333	$ 1,065