LOANS (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for sale, at lower of cost or fair value	$ 187	$ 388
Sales of loans	412	234,000
Impaired non-accrual loans	13,530	11,264
Impaired non-accrual loans performing troubled debt restructured	9,500	17,800
Allowance allocated to troubled debt restructured loans	423	550
Allowance allocated to non accrual loans	173	314
Impaired loans	23,065	29,071
Troubled debt restructurings specific reserves to customers	423	550
Gain on loans held for sale at lower of cost or fair value	412	1,233
Transfer of loans held for sale to loan portfolio		$ 30,121
Multifamily Property [Member] | Residential Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for sale, at lower of cost or fair value	$ 109