Earnings Per Share: Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Details
Net income	$ 3,534	$ 3,024
Weighted average shares, basic	3,655	3,644
Dilutive effect of stock options	10	11
Diluted shares	3,665	3,655
Earnings per share, basic	$ 0.97	$ 0.83
Earnings per share, diluted	$ 0.96	$ 0.83