Summary of Significant Accounting Policies - Additional Information (Detail) |
1 Months Ended | 3 Months Ended | ||
|---|---|---|---|---|
|
Jul. 22, 2025
shares
|
Mar. 31, 2026
USD ($)
Location
shares
|
Mar. 31, 2025
shares
|
Dec. 31, 2025
USD ($)
|
|
| Equity, Class of Treasury Stock [Line Items] | ||||
| Number of locations | Location | 79 | |||
| Minimum number of shares that company is required to repurchase | shares | 0 | |||
| Minimum number of days to consider the loans as non-accrual | 90 days | |||
| First financial antidilutive securities excluded from eps computation | shares | 834,000 | 368,000 | ||
| Deferred Tax Assets | $ | $ 80,418,000 | $ 76,518,000 | ||
| Commitments to Extend Credit [Member] | ||||
| Equity, Class of Treasury Stock [Line Items] | ||||
| Reserve for unfunded commitments | $ | 5,940,000 | 6,387,000 | ||
| Held-to-maturity Securities [Member] | ||||
| Equity, Class of Treasury Stock [Line Items] | ||||
| Securities held to maturity | $ | $ 0 | $ 0 | ||
| Maximum [Member] | ||||
| Equity, Class of Treasury Stock [Line Items] | ||||
| Stock repurchase program, number of shares authorized to be repurchased | shares | 5,000,000 | |||