ALLOWANCE FOR LOAN LOSSES: (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($)
Allowance for Credit Losses:
Minimum outstanding balance of non-homogeneous loans to be individually evaluated as to credit risk	$ 100
Minimum
Allowance for Credit Losses:
Loan modification, reduction of stated interest rate	12 months
Loan modification, extension of maturity date	12 months
Maximum
Allowance for Credit Losses:
Loan modification, reduction of stated interest rate	5 years
Loan modification, extension of maturity date	10 years