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12. Employee and Director Benefit Programs (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Retirement Benefits [Abstract]
Service cost	$ 299	$ 362	$ 348
Interest cost	58	70	68
Net periodic cost	$ 357	$ 432	$ 416
Weighted average discount rate assumption used to determine benefit obligation	5.49%	5.49%	5.49%

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Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan.

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Amount of cost recognized for passage of time related to defined benefit plan.

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