Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2022	Mar. 31, 2021
Investment securities:
Held-to-maturity, at fair value	$ 2,998	$ 7,035
Stockholders’ equity:
Common stock, par value (in dollars per share)	$ 4	$ 4
Common stock, authorized (in shares)	30,000,000	30,000,000
Common stock, issued (in shares)	21,065,888	18,708,746
Common stock, outstanding (in shares)	20,437,183	18,080,303
Treasury stock (in shares)	628,705	628,443