ALLOWANCE FOR LOAN LOSSES: (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Unpaid principal balance
With no related allowance recorded	$ 0
TOTAL	7,643
Recorded Investment
With no related allowance recorded:	0
With an allowance recorded:	148
TOTAL	7,113
Allowance for loan losses
Allowance for Loan Losses Allocated	48
Average recorded investment
With no related allowance recorded:	0	$ 23
TOTAL	8,693	11,118
Interest Income Recognized
With no related allowance recorded:	0	0
TOTAL	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0
TOTAL	0	0
Commercial & Industrial
Unpaid principal balance
With no related allowance recorded	1,519
With an allowance recorded	148
Recorded Investment
With no related allowance recorded:	989
With an allowance recorded:	148
Allowance for loan losses
Allowance for Loan Losses Allocated	48
Average recorded investment
With no related allowance recorded:	848	698
With an allowance recorded:	1,108	688
Interest Income Recognized
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0
With no related allowance recorded:	0	0
Farmland
Unpaid principal balance
With no related allowance recorded	1,997
With an allowance recorded	0
Recorded Investment
With no related allowance recorded:	1,997
With an allowance recorded:	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0
Average recorded investment
With no related allowance recorded:	1,999	1,579
With an allowance recorded:	84	1,691
Interest Income Recognized
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0
With no related allowance recorded:	0	0
Non Farm, Non Residential
Unpaid principal balance
With no related allowance recorded	0
With an allowance recorded	0
Recorded Investment
With no related allowance recorded:	0
With an allowance recorded:	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0
Average recorded investment
With no related allowance recorded:	0	1,443
With an allowance recorded:	0	0
Interest Income Recognized
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0
With no related allowance recorded:	0	0
Agriculture
Unpaid principal balance
With no related allowance recorded	0
With an allowance recorded	0
Recorded Investment
With no related allowance recorded:	0
With an allowance recorded:	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0
Average recorded investment
With no related allowance recorded:	0	49
With an allowance recorded:	138	316
Interest Income Recognized
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0
With no related allowance recorded:	0	0
All Other Commercial
Unpaid principal balance
With no related allowance recorded	27
With an allowance recorded	0
Recorded Investment
With no related allowance recorded:	27
With an allowance recorded:	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0
Average recorded investment
With no related allowance recorded:	461	1,172
With an allowance recorded:	0	0
Interest Income Recognized
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0
With no related allowance recorded:	0	0
First Liens
Unpaid principal balance
With no related allowance recorded	3,952
With an allowance recorded	0
Recorded Investment
With no related allowance recorded:	3,952
With an allowance recorded:	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0
Average recorded investment
With no related allowance recorded:	4,055	3,371
With an allowance recorded:	0	88
Interest Income Recognized
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0
With no related allowance recorded:	0	0
Home Equity
Unpaid principal balance
With no related allowance recorded	0
With an allowance recorded	0
Recorded Investment
With no related allowance recorded:	0
With an allowance recorded:	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0
Average recorded investment
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Interest Income Recognized
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0
With no related allowance recorded:	0	0
Junior Liens
Unpaid principal balance
With an allowance recorded	0
Recorded Investment
With an allowance recorded:	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0
Average recorded investment
With an allowance recorded:	0	0
Interest Income Recognized
With an allowance recorded:	0	0
Cash Basis Interest Income Recognized
With no related allowance recorded:	0	0
Multifamily
Unpaid principal balance
With no related allowance recorded	0
With an allowance recorded	0
Recorded Investment
With no related allowance recorded:	0
With an allowance recorded:	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0
Average recorded investment
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Interest Income Recognized
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0
With no related allowance recorded:	0	0
All Other Residential
Unpaid principal balance
With no related allowance recorded	0
With an allowance recorded	0
Recorded Investment
With no related allowance recorded:	0
With an allowance recorded:	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0
Average recorded investment
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Interest Income Recognized
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0
With no related allowance recorded:	0	0
Motor Vehicle
Unpaid principal balance
With no related allowance recorded	0
With an allowance recorded	0
Recorded Investment
With no related allowance recorded:	0
With an allowance recorded:	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0
Average recorded investment
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Interest Income Recognized
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0
With no related allowance recorded:	0	0
All Other Consumer
Unpaid principal balance
With no related allowance recorded	0
With an allowance recorded	0
Recorded Investment
With no related allowance recorded:	0
With an allowance recorded:	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0
Average recorded investment
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Interest Income Recognized
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0
With no related allowance recorded:	$ 0	$ 0