6. Fair Value, Loans Impaired (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Mortgage loans held for sale	$ 361	$ 680
Impaired loans	25,154	21,695
Other real estate	$ 27	27
Mortgage loans held for sale [Member]
Valuation Technique	Rate lock commitment
Significant Unobservable Inputs	N/A
General Range of Significant Unobservable Input Values	N/A
Impaired loans [Member]
Valuation Technique	Appraised value and discounted cash flows
Significant Unobservable Inputs	Discounts to reflect current market conditions and ultimate collectability
General Range of Significant Unobservable Input Values	Discounts to reflect current market conditions and estimated costs to sell
Other real estate [Member]
Valuation Technique	Appraised value
Significant Unobservable Inputs	0 - 25%
General Range of Significant Unobservable Input Values	0 - 25%
Level 1
Mortgage loans held for sale	$ 0	0
Impaired loans	0	0
Other real estate	0	0
Level 2
Mortgage loans held for sale	0	0
Impaired loans	0	0
Other real estate	0	0
Level 3
Mortgage loans held for sale	361	680
Impaired loans	25,154	21,695
Other real estate	$ 27	$ 27