Securities - Securities Held to Maturity (Details) - USD ($)	Mar. 31, 2023	Dec. 31, 2022
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss [Abstract]
Securities held to maturity	$ 369,577,000	$ 374,818,000
Debt securities, held-to-maturity, transferred unrealized loss	22,216,000	23,066,000
Debt securities, held-to-maturity, allowance for credit loss	160,000	168,000
Total securities held-to-maturity, amortized cost	391,953,000	398,052,000
Debt securities, held-to-maturity, unrealized gains	108,000	11,000
Debt securities, held-to-maturity, unrealized losses	52,724,000	62,645,000
Debt securities, held-to-maturity, fair value	339,337,000	335,418,000
U.S. agency
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss [Abstract]
Securities held to maturity	27,527,000	27,634,000
Debt securities, held-to-maturity, transferred unrealized loss	1,804,000	1,839,000
Debt securities, held-to-maturity, allowance for credit loss	0	0
Total securities held-to-maturity, amortized cost	29,331,000	29,473,000
Debt securities, held-to-maturity, unrealized gains	0	0
Debt securities, held-to-maturity, unrealized losses	4,299,000	5,066,000
Debt securities, held-to-maturity, fair value	25,032,000	24,407,000
U.S. agency residential mortgage-backed
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss [Abstract]
Securities held to maturity	115,673,000	117,650,000
Debt securities, held-to-maturity, transferred unrealized loss	10,571,000	10,845,000
Debt securities, held-to-maturity, allowance for credit loss	0	0
Total securities held-to-maturity, amortized cost	126,244,000	128,495,000
Debt securities, held-to-maturity, unrealized gains	0	0
Debt securities, held-to-maturity, unrealized losses	22,447,000	25,239,000
Debt securities, held-to-maturity, fair value	103,797,000	103,256,000
U.S. agency commercial mortgage-backed
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss [Abstract]
Securities held to maturity	4,766,000	4,798,000
Debt securities, held-to-maturity, transferred unrealized loss	214,000	228,000
Debt securities, held-to-maturity, allowance for credit loss	0	0
Total securities held-to-maturity, amortized cost	4,980,000	5,026,000
Debt securities, held-to-maturity, unrealized gains	0	0
Debt securities, held-to-maturity, unrealized losses	445,000	596,000
Debt securities, held-to-maturity, fair value	4,535,000	4,430,000
Private label mortgage-backed
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss [Abstract]
Securities held to maturity	7,257,000	7,242,000
Debt securities, held-to-maturity, transferred unrealized loss	388,000	416,000
Debt securities, held-to-maturity, allowance for credit loss	1,000	1,000
Total securities held-to-maturity, amortized cost	7,646,000	7,659,000
Debt securities, held-to-maturity, unrealized gains	0	0
Debt securities, held-to-maturity, unrealized losses	876,000	997,000
Debt securities, held-to-maturity, fair value	6,770,000	6,662,000
Obligations of states and political subdivisions
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss [Abstract]
Securities held to maturity	167,919,000	168,134,000
Debt securities, held-to-maturity, transferred unrealized loss	8,136,000	8,555,000
Debt securities, held-to-maturity, allowance for credit loss	39,000	39,000
Total securities held-to-maturity, amortized cost	176,094,000	176,728,000
Debt securities, held-to-maturity, unrealized gains	108,000	11,000
Debt securities, held-to-maturity, unrealized losses	19,352,000	25,591,000
Debt securities, held-to-maturity, fair value	156,850,000	151,148,000
Corporate
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss [Abstract]
Securities held to maturity	45,491,000	48,418,000
Debt securities, held-to-maturity, transferred unrealized loss	1,051,000	1,130,000
Debt securities, held-to-maturity, allowance for credit loss	116,000	123,000
Total securities held-to-maturity, amortized cost	46,658,000	49,671,000
Debt securities, held-to-maturity, unrealized gains	0	0
Debt securities, held-to-maturity, unrealized losses	5,151,000	5,156,000
Debt securities, held-to-maturity, fair value	41,507,000	44,515,000
Trust preferred
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss [Abstract]
Securities held to maturity	944,000	942,000
Debt securities, held-to-maturity, transferred unrealized loss	52,000	53,000
Debt securities, held-to-maturity, allowance for credit loss	4,000	5,000
Total securities held-to-maturity, amortized cost	1,000,000	1,000,000
Debt securities, held-to-maturity, unrealized gains	0	0
Debt securities, held-to-maturity, unrealized losses	154,000	0
Debt securities, held-to-maturity, fair value	$ 846,000	$ 1,000,000