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Recent Events, Including Mergers and Acquisitions, Business Combinations (Details) - USD ($) $ in Thousands		12 Months Ended
	Dec. 09, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Assets Acquired [Abstract]
Loans		$ 114,600
Liabilities Assumed [Abstract]
Consideration transferred		29,266	$ 0	$ 0
Goodwill		8,479	$ 1,011
Gross loans		115,800
Discount on gross loans		1,200
Available-for-sale debt securities, gross		86,600
Available-for-sale debt securities, discount		(375)
Premises and equipment, gross		6,900
Premises and equipment, premium		$ 1,500
Core Deposits [Member]
Liabilities Assumed [Abstract]
Estimated useful life		10 years
Watonga Bancshares, Inc [Member]
Business Combinations [Abstract]
Percentage of acquired equity	100.00%
Cash consideration	$ 29,300
Assets Acquired [Abstract]
Cash and cash equivalents	41,747
Investment securities available-for-sale	86,166
Federal funds sold	7,941
Loans	117,335
Premises and equipment	8,372
Core deposit intangible	1,254
Prepaid expenses and other assets	4,512
Total assets acquired	267,327
Liabilities Assumed [Abstract]
Deposits	243,487
Accounts payable and accrued expenses	2,041
Total liabilities assumed	245,528
Net assets acquired	21,799
Consideration transferred	29,266
Goodwill	7,467
Gross loans	118,500
Discount on gross loans	$ 1,200