Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Debt securities, available-for-sale, amortized cost	$ 565,493	$ 533,203
Preferred Stock, par value (in dollars per share)	$ 0	$ 0
Preferred stock, liquidation preference	$ 1	$ 1
Preferred stock, shares authorized (in shares)	60,375	60,375
Preferred stock, shares issued (in shares)	60,375	0
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	16,978,057	15,360,946
Treasury stock, shares (in shares)	145,049	112,961