Consolidated Balance Sheets (Parentheticals) - USD ($) shares in Thousands, $ / shares in Thousands, $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt securities held to maturity, allowance for credit losses	$ 7	$ 9
Debt securities held to maturity, fair value	$ 312,562	$ 529,678
Common stock, no par value (in dollars per share)	$ 0	$ 0
Common stock, authorized (in shares)	150,000	150,000
Common stock, issued (in shares)	26,866	26,807
Common stock, outstanding (in shares)	26,866	26,807

Face amount per share of no-par value common stock.

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Amount of allowance for credit loss for debt security measured at amortized cost (held-to-maturity).

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