Fair Value Measurement - Assets Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS, at fair value	$ 218,064	$ 237,878
Equity securities	413	430
Loans held for sale	4,270	2,475
Derivative assets	18,608	11,703
Total	241,355	252,486
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS, at fair value	0	0
Equity securities	413	430
Loans held for sale	0	0
Derivative assets	0	0
Total	413	430
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS, at fair value	218,064	237,878
Equity securities	0	0
Loans held for sale	4,270	2,475
Derivative assets	18,608	11,703
Total	240,942	252,056
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS, at fair value	0	0
Equity securities	0	0
Loans held for sale	0	0
Derivative assets	0	0
Total	0	0
U.S. Treasury and U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS, at fair value	34,731	34,914
U.S. Treasury and U.S. government agencies | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS, at fair value	0	0
U.S. Treasury and U.S. government agencies | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS, at fair value	34,731	34,914
U.S. Treasury and U.S. government agencies | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS, at fair value	0	0
Mortgage-backed U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS, at fair value	148,644	166,915
Mortgage-backed U.S. government agencies | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS, at fair value	0	0
Mortgage-backed U.S. government agencies | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS, at fair value	148,644	166,915
Mortgage-backed U.S. government agencies | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS, at fair value	0	0
State and political subdivision obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS, at fair value	3,312	3,539
State and political subdivision obligations | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS, at fair value	0	0
State and political subdivision obligations | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS, at fair value	3,312	3,539
State and political subdivision obligations | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS, at fair value	0	0
Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS, at fair value	31,377	32,510
Corporate debt securities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS, at fair value	0	0
Corporate debt securities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS, at fair value	31,377	32,510
Corporate debt securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS, at fair value	$ 0	$ 0