MORTGAGE SERVICING RIGHTS - Changes in mortgage servicing rights (Details) - Changes in mortgage servicing rights - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Mortgage Servicing Rights
Balance, beginning of period		$ 456	$ 637	$ 487	$ 694
Originated		24	40	45	102
Amortization (1)	[1]	(64)	(78)	(116)	(197)
Balance, end of period		416	599	416	599
Valuation Allowance
Balance, beginning of period		(24)	(9)	(4)
(Increase) decrease in impairment reserve (1)	[1]	(1)	7	(21)	(2)
Balance, end of period		(25)	(2)	(25)	(2)
Loan servicing rights, net		$ 391	$ 597	$ 391	$ 597

[1] (1) Amortization expense and changes in the impairment reserve are recorded in mortgage servicing, net, in the consolidated statements of income.