Business Combination and Asset Purchase - Summary of Loans Acquired and Contractually Required Payments Receivable (Detail) $ in Thousands	Dec. 31, 2021 USD ($)
Perpetual Federal Savings Bank [Member]
Business Acquisition [Line Items]
Total required payments receivable	$ 1,407
Cash flows expected to be collected at acquisition	728
Basis in acquired loans at acquisition	965
Ossian Financial Services, Inc. [Member]
Business Acquisition [Line Items]
Total required payments receivable	2,057
Cash flows expected to be collected at acquisition	1,309
Basis in acquired loans at acquisition	1,634
Consumer Real Estate [Member] \| Perpetual Federal Savings Bank [Member]
Business Acquisition [Line Items]
Total required payments receivable	962
Consumer Real Estate [Member] \| Ossian Financial Services, Inc. [Member]
Business Acquisition [Line Items]
Total required payments receivable	28
Agricultural Real Estate [Member] \| Perpetual Federal Savings Bank [Member]
Business Acquisition [Line Items]
Total required payments receivable	146
Agricultural Real Estate [Member] \| Ossian Financial Services, Inc. [Member]
Business Acquisition [Line Items]
Total required payments receivable	1,142
Commercial Real Estate [Member] \| Perpetual Federal Savings Bank [Member]
Business Acquisition [Line Items]
Total required payments receivable	293
Commercial Real Estate [Member] \| Ossian Financial Services, Inc. [Member]
Business Acquisition [Line Items]
Total required payments receivable	527
Commercial and Industrial [Member] \| Perpetual Federal Savings Bank [Member]
Business Acquisition [Line Items]
Total required payments receivable	6
Commercial and Industrial [Member] \| Ossian Financial Services, Inc. [Member]
Business Acquisition [Line Items]
Total required payments receivable	$ 360

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Fair value at acquisition of acquired loans accounted for as debt securities with evidence of deterioration of credit quality.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
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- Definition

Amount of cash flows expected to be collected at acquisition of acquired loans accounted for as debt securities with evidence of deterioration of credit quality.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 15
-Paragraph 2
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Amount of contractually required payments receivable at acquisition of acquired loans accounted for as debt securities with evidence of deterioration of credit quality.

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