4. Allowance for Loan Losses (Details 3) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Credit cards	$ 2,949	$ 2,939
Dealer Finance	92,084	75,169
Performing [Member]
Credit cards	2,937	2,938
Dealer Finance	91,795	75,116
Non performing [Member]
Credit cards	12	1
Dealer Finance	$ 289	$ 53