ALLOWANCE FOR LOAN LOSSES: (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Allowance for Loan Losses:
Specific reserves allocated to troubled debt restructuring		$ 25	$ 742
Impaired loans	$ 8,600	9,725
Allowance for Loan Losses Allocated	331	1,159
Minimum outstanding balance of non-homogeneous loans to be individually evaluated as to credit risk	100
Covered Loans
Allowance for Loan Losses:
Loans Past Due Over 90 Day Still Accruing	80	37
Non-accrual	$ 112	$ 242
Minimum
Allowance for Loan Losses:
Loan modification, reduction of stated interest rate	12 months
Loan modification, extension of maturity date	12 months
Maximum
Allowance for Loan Losses:
Loan modification, reduction of stated interest rate	5 years
Loan modification, extension of maturity date	10 years