CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Available-for-sale debt securities	$ 492,626	$ 512,518
Available-for-sale debt securities, allowance for credit losses	0	0
Held-to-maturity debt securities	44,764	54,190
Held-to-maturity debt securities, allowance for credit losses	47	178
Loans held for investment fair value	$ 170	$ 497
Preferred stock, no par value	$ 0	$ 0
Class A Common Stock
Common Stock, no par value	$ 0	$ 0
Common Stock, shares authorized	30,000,000	30,000,000
Common Stock, issued	17,816,083	18,696,607
Common Stock, outstanding	17,816,083	18,696,607
Class B Common Stock
Common Stock, no par value	$ 0	$ 0
Common Stock, shares authorized	5,000,000	5,000,000
Common Stock, issued	2,164,903	2,199,455
Common Stock, outstanding	2,164,903	2,199,455