Equity and Regulatory Matters - Additional Information (Detail) - USD ($) $ in Thousands	4 Months Ended	12 Months Ended
Dec. 31, 2022	Dec. 31, 2022	Aug. 26, 2022	Jul. 29, 2022
Text Block [Abstract]
Percentage of repurchase of outstanding shares			5.00%	5.00%
Stock Repurchase Program, Number of Shares Authorized to be Repurchased			319,766
Shares repurchased	296,918	296,918
Purchase price of repurchased shares	$ 3,200	$ (3,173)

Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Period Type:	duration