ALLOWANCE FOR LOAN LOSSES: (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Unpaid principal balance
With no related allowance recorded	$ 0	$ 0
TOTAL	7,643	10,516
Recorded Investment
With no related allowance recorded:	0	0
With an allowance recorded:	148	2,376
TOTAL	7,113	10,516
Allowance for loan losses
Allowance for Loan Losses Allocated	48	737
Average recorded investment
With no related allowance recorded:	0	23	$ 0
TOTAL	8,693	11,118	8,663
Interest Income Recognized
With no related allowance recorded:	0	0	0
TOTAL	0	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0	0
TOTAL	0	0	0
Commercial & Industrial
Unpaid principal balance
With no related allowance recorded	1,519	589
With an allowance recorded	148	1,819
Recorded Investment
With no related allowance recorded:	989	589
With an allowance recorded:	148	1,819
Allowance for loan losses
Allowance for Loan Losses Allocated	48	593
Average recorded investment
With no related allowance recorded:	848	698	971
With an allowance recorded:	1,108	688	514
Interest Income Recognized
With no related allowance recorded:	0	0	0
With an allowance recorded:	0	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0	0
With no related allowance recorded:	0	0	0
Farmland
Unpaid principal balance
With no related allowance recorded	1,997	2,022
With an allowance recorded	0	211
Recorded Investment
With no related allowance recorded:	1,997	2,022
With an allowance recorded:	0	211
Allowance for loan losses
Allowance for Loan Losses Allocated	0	44
Average recorded investment
With no related allowance recorded:	1,999	1,579	1,265
With an allowance recorded:	84	1,691	669
Interest Income Recognized
With no related allowance recorded:	0	0	0
With an allowance recorded:	0	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0	0
With no related allowance recorded:	0	0	0
Non Farm, Non Residential
Unpaid principal balance
With no related allowance recorded	0	0
With an allowance recorded	0	0
Recorded Investment
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0	0
Average recorded investment
With no related allowance recorded:	0	1,443	2,781
With an allowance recorded:	0	0	131
Interest Income Recognized
With no related allowance recorded:	0	0	0
With an allowance recorded:
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0	0
With no related allowance recorded:	0	0	0
Agriculture
Unpaid principal balance
With no related allowance recorded	0	0
With an allowance recorded	0	346
Recorded Investment
With no related allowance recorded:	0	0
With an allowance recorded:	0	346
Allowance for loan losses
Allowance for Loan Losses Allocated	0	100
Average recorded investment
With no related allowance recorded:	0	49	239
With an allowance recorded:	138	316	279
Interest Income Recognized
With no related allowance recorded:	0	0	0
With an allowance recorded:	0	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0	0
With no related allowance recorded:	0	0	0
All Other Commercial
Unpaid principal balance
With no related allowance recorded	27	1,114
With an allowance recorded	0	0
Recorded Investment
With no related allowance recorded:	27	1,114
With an allowance recorded:	0	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0	0
Average recorded investment
With no related allowance recorded:	461	1,172	1,308
With an allowance recorded:	0	0	0
Interest Income Recognized
With no related allowance recorded:	0	0	0
With an allowance recorded:	0	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0	0
With no related allowance recorded:	0	0	0
First Liens
Unpaid principal balance
With no related allowance recorded	3,952	4,415
With an allowance recorded	0	0
Recorded Investment
With no related allowance recorded:	3,952	4,415
With an allowance recorded:	0	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0	0
Average recorded investment
With no related allowance recorded:	4,055	3,371	23
With an allowance recorded:	0	88	483
Interest Income Recognized
With no related allowance recorded:	0	0	0
With an allowance recorded:	0	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0	0
With no related allowance recorded:	0	0	0
Home Equity
Unpaid principal balance
With no related allowance recorded	0	0
With an allowance recorded	0	0
Recorded Investment
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0	0
Average recorded investment
With no related allowance recorded:	0	0	0
With an allowance recorded:	0	0	0
Interest Income Recognized
With no related allowance recorded:	0	0	0
With an allowance recorded:	0	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0	0
With no related allowance recorded:	0	0	0
Junior Liens
Unpaid principal balance
With an allowance recorded	0	0
Recorded Investment
With an allowance recorded:	0	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0	0
Average recorded investment
With an allowance recorded:	0	0	0
Interest Income Recognized
With an allowance recorded:	0	0	0
Cash Basis Interest Income Recognized
With no related allowance recorded:	0	0	0
Multifamily
Unpaid principal balance
With no related allowance recorded	0	0
With an allowance recorded	0	0
Recorded Investment
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0	0
Average recorded investment
With no related allowance recorded:	0	0	0
With an allowance recorded:	0	0	0
Interest Income Recognized
With no related allowance recorded:	0	0	0
With an allowance recorded:	0	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0	0
With no related allowance recorded:	0	0	0
All Other Residential
Unpaid principal balance
With no related allowance recorded	0	0
With an allowance recorded	0	0
Recorded Investment
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0	0
Average recorded investment
With no related allowance recorded:	0	0	0
With an allowance recorded:	0	0	0
Interest Income Recognized
With no related allowance recorded:	0	0	0
With an allowance recorded:	0	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0	0
With no related allowance recorded:	0	0	0
Motor Vehicle
Unpaid principal balance
With no related allowance recorded	0	0
With an allowance recorded	0	0
Recorded Investment
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0	0
Average recorded investment
With no related allowance recorded:	0	0	0
With an allowance recorded:	0	0	0
Interest Income Recognized
With no related allowance recorded:	0	0	0
With an allowance recorded:	0	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0	0
With no related allowance recorded:	0	0	0
All Other Consumer
Unpaid principal balance
With no related allowance recorded	0	0
With an allowance recorded	0	0
Recorded Investment
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0	0
Average recorded investment
With no related allowance recorded:	0	0	0
With an allowance recorded:	0	0	0
Interest Income Recognized
With no related allowance recorded:	0	0	0
With an allowance recorded:	0	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0	0
With no related allowance recorded:	$ 0	$ 0	$ 0