Merger and Acquisition - Additional Information (Detail) $ / shares in Units, shares in Millions		1 Months Ended	12 Months Ended
	Nov. 30, 2023 USD ($) Location Facility $ / shares shares	Dec. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Business Acquisition [Line Items]
Net interest income		$ 8,897,000	$ 38,711,000	$ 32,985,000
Net loss		11,712,000	11,968,000	(5,598,000)
Allowance for credit losses		$ 23,767,000	$ 23,767,000	$ 4,666,000
Partners Bancorp [Member]
Business Acquisition [Line Items]
Merger completion date	Nov. 30, 2023
Percentage of merger	100.00%
Business acquisition,share price | $ / shares	$ 1.15
Number of shares of common stock issued | shares	20.7
Percentage of outstanding common shares post-merger	55.40%
Total fair value consideration	$ 135,779,000
Fair value of discount amortized over estimated life of investments	921,000
Loans acquired from Partners	1,300,000,000
Fair value of acquistion loan	$ 5,900,000
Number of facility leases | Facility	11
Number of locations | Location	13
Fair value adjustment of long term borrowings	$ 0
Partners Bancorp [Member] | PCD Loan [Member]
Business Acquisition [Line Items]
Loans acquired from Partners	$ 431,600,000
Acquired percentage of loans	33.00%
Contractual amounts receivable gross	$ 431,600,000
Estimated contractual amounts uncollectible	158,000
Fair value of acquistion loan	408,600,000
Partners Bancorp [Member] | Non PCD Loans [Member]
Business Acquisition [Line Items]
Allowance for credit losses	9,700,000
Partners Bancorp [Member] | Common Stock [Member]
Business Acquisition [Line Items]
Fair value of common stock issued	133,800,000
Partners Bancorp [Member] | Restricted Stock [Member]
Business Acquisition [Line Items]
Fair value of common stock issued	$ 2,000,000