Summary of Significant Accounting Policies - Additional Information (Detail) $ in Thousands		6 Months Ended
	Jan. 01, 2023 USD ($)	Jun. 30, 2023 USD ($) Integer	May 19, 2023	Dec. 31, 2022 USD ($)	May 03, 2007 Branches
Description Of Organization And Summary Of Significant Accounting Policies [Line Items]
Entity incorporation date of incorporation		Mar. 05, 2007
State in which the entity was incorporated		NJ
Year of incorporation		2007
Operations commencement date		Apr. 23, 2007
Number of branches owned by the entity | Branches					30
Retained earnings accumulated deficit		$ 140,310		$ 131,488
Number Of Employees | Integer		212
Number Of Full Time Employees | Integer		209
Noah Bank [Member]
Description Of Organization And Summary Of Significant Accounting Policies [Line Items]
Percentage of outstanding common stock acquired			100.00%
Accounting Standard Pending Adoption [Member] | Accounting Standards Update 2019-05 [Member]
Description Of Organization And Summary Of Significant Accounting Policies [Line Items]
Retained earnings accumulated deficit	$ 284
Financing receivable change in method credit loss expense reversal	301
Accounting Standard Pending Adoption [Member] | Accounting Standards Update 2019-05 [Member] | SEC Schedule, 12-09, Reserve, off-Balance-Sheet Activity [Member]
Description Of Organization And Summary Of Significant Accounting Policies [Line Items]
Reserve for unfunded liability	$ 695
New Jersey State Chartered Banking Institution [Member]
Description Of Organization And Summary Of Significant Accounting Policies [Line Items]
State in which the entity was incorporated		NJ