12. SHORT-TERM DEBT (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Outstanding at year end	$ 10,000	$ 40,116
Average balance outstanding	$ 27,683	$ 24,336
Year end interest rate	2.49%	1.87%
Federal funds purchased
Maximum outstanding at any month end	$ 10,715	$ 11,906
Outstanding at year end	0	10,116
Average balance outstanding	$ 861	$ 1,399
Year end interest rate	2.67%	2.51%
FHLB short term
Maximum outstanding at any month end	$ 45,000	$ 46,000
Outstanding at year end	10,000	30,000
Average balance outstanding	$ 26,822	$ 22,937
Year end interest rate	2.48%	1.83%