6. Fair Value (Details 2) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Impaired Loans	$ 6,304	$ 3,289
Fair Value Inputs Level 3 [Member]
Impaired Loans	6,304	3,289
Other Real Estate Owned	$ 2,174	$ 2,443
Valuation Technique Impaired Loans	Discounted appraised value	Discounted appraised value
Valuation Technique Other Real Estate Owned	Discounted appraised value	Discounted appraised value
Significant Unobservable Inputs Impaired Loans	Discount for selling costs and marketability	Discount for selling costs and marketability
Significant Unobservable Inputs Other Real Estate Owned	Discount for selling costs	Discount for selling costs
Average Impaired Loans	11.56%	4.21%
Average Other Real Estate Owned	8.00%	8.00%
Fair Value Inputs Level 3 [Member] | Minimum [Member]
Range Impaired Loans	6.00%	2.00%
Range Other Real Estate Owned	5.00%	5.00%
Fair Value Inputs Level 3 [Member] | Maximum [Member]
Range Impaired Loans	22.00%	9.00%
Range Other Real Estate Owned	15.00%	15.00%