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Loans Receivable - Summary of Portfolio Segments and Classes of Loans (Detail) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | --- | --- | --- | ---
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |  |
Loans receivable | $ 969,170 | $ 927,615 |  |  |
Deferred costs (fees) | (363) | (256) |  |  |
Allowance for credit losses | (10,228) | (4,666) | $ (3,890) | $ (3,443) | $ (3,152)
Net loans | 959,305 | 923,205 |  |  |
Agriculture And Farmland Loans [Member] |  |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |  |
Loans receivable | 50,552 | 55,746 |  |  |
Allowance for credit losses |  | (279) |  |  |
Construction [Member] |  |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |  |
Loans receivable | 75,628 | 57,713 |  |  |
Allowance for credit losses |  | (274) |  |  |
Commercial And Industrial Loans [Member] |  |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |  |
Loans receivable | 104,869 | 104,755 |  |  |
Consumer and Other Loans [Member] |  |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |  |
Loans receivable | 11,308 | 10,057 |  |  |
Municipal Loans [Member] |  |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |  |
Loans receivable | 3,929 | 5,466 |  |  |
Allowance for credit losses |  | (12) |  |  |
Multifamily [Member] |  |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |  |
Loans receivable | 113,254 | 105,390 |  |  |
Allowance for credit losses |  | (480) |  |  |
Owner Occupied [Member] |  |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |  |
Loans receivable | 154,520 | 139,554 |  |  |
Allowance for credit losses |  | (635) |  |  |
Non-owner Occupied [Member] |  |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |  |
Loans receivable | 254,691 | 245,274 |  |  |
Allowance for credit losses |  | (1,116) |  |  |
First Liens [Member] |  |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |  |
Loans receivable | 170,271 | 168,084 |  |  |
Allowance for credit losses |  | (1,029) |  |  |
Second Liens and Lines of Credit [Member] |  |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |  |
Loans receivable | $ 30,148 | 35,576 |  |  |
Allowance for credit losses |  | $ (218) |  |  |

X
- Definition Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(1)(ii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481696/310-30-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 11B -Subparagraph (c)(1) -SubTopic 10 -Topic 310 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-11B Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 11B -Subparagraph (g) -SubTopic 10 -Topic 310 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-11B Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L.1) -SubTopic 10 -Topic 310 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480418/310-10-S99-4 + Details
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- Definition Amount of deferred interest and fee income, unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans. Excludes amounts for loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 20 -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481569/310-20-50-3 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a)(4) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481161/840-30-50-4 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-4 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
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