Earnings Per Share: Schedule of Earnings Per Share Reconciliation (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Earnings Per Share [Abstract]
Net income	$ 13,240	$ 12,249
Undistributed Earnings (Loss) Allocated to Participating Securities, Basic	(44)	(58)
Earnings allocated to common shareholders	$ 13,196	$ 12,191
Basic weighted-average common shares outstanding	9,006,369	9,340,997
Dilutive effect of stock options	81,480	95,584
Dilutive effect of restricted stock grants	14,434	17,914
Diluted weighted-average common shares outstanding	9,102,283	9,454,495
Basic earnings (loss) per share (usd per share)	$ 1.47	$ 1.31
Diluted earnings (loss) per share (usd per share)	$ 1.45	$ 1.29