FAIR VALUE, Assets and Liabilities Measured on Nonrecurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Assets and Liabilities Measured on Nonrecurring Basis [Abstract]
Other real estate owned	$ 1,142	$ 1,915
Valuation allowance	956	804
Mortgage Servicing Rights [Member]
Assets and Liabilities Measured on Nonrecurring Basis [Abstract]
Valuation allowance	0
Non-recurring [Member]
Assets and Liabilities Measured on Nonrecurring Basis [Abstract]
Other real estate owned	1,142	1,915
Non-recurring [Member] | Level 1 [Member]
Assets and Liabilities Measured on Nonrecurring Basis [Abstract]
Other real estate owned	0	0
Non-recurring [Member] | Level 2 [Member]
Assets and Liabilities Measured on Nonrecurring Basis [Abstract]
Other real estate owned	0	0
Non-recurring [Member] | Level 3 [Member]
Assets and Liabilities Measured on Nonrecurring Basis [Abstract]
Other real estate owned	$ 1,142	$ 1,915