Fair Value Measurements - Summary of assets and liabilities measured at fair value on recurring basis (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Available-for-sale securities
Total available-for-sale	$ 236,919	$ 241,746
Debt Securities, Held-to-Maturity, Fair Value [Abstract]
Securities held to maturity, fair value	60,304	60,931
Residential Mortgage-Backed Securities [Member]
Available-for-sale securities
Total available-for-sale	85,738	85,952
Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member]
Available-for-sale securities
Total available-for-sale	151,181	155,794
Debt Securities, Held-to-Maturity, Fair Value [Abstract]
Securities held to maturity, fair value	60,304	60,931
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Available-for-sale securities
Total available-for-sale	0	0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member] \| Residential Mortgage-Backed Securities [Member]
Available-for-sale securities
Total available-for-sale	0	0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member] \| Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member]
Available-for-sale securities
Total available-for-sale	0	0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Available-for-sale securities
Total available-for-sale	236,919	241,746
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member] \| Residential Mortgage-Backed Securities [Member]
Available-for-sale securities
Total available-for-sale	85,738	85,952
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member] \| Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member]
Available-for-sale securities
Total available-for-sale	151,181	155,794
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
Available-for-sale securities
Total available-for-sale	0	0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member] \| Residential Mortgage-Backed Securities [Member]
Available-for-sale securities
Total available-for-sale	0	0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member] \| Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member]
Available-for-sale securities
Total available-for-sale	$ 0	$ 0