Basis of Financial Statement Presentation and Restatement of Consolidated Financial Statements - Restatement (Details) $ / shares in Units, $ in Thousands		3 Months Ended		6 Months Ended
	Jan. 01, 2023 USD ($)	Jun. 30, 2023 USD ($) $ / shares	Jun. 30, 2022 USD ($) $ / shares	Jun. 30, 2023 USD ($) $ / shares	Jun. 30, 2022 USD ($) $ / shares	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity		$ 46,411	$ 59,802	$ 46,411	$ 59,802	$ 48,644	$ 59,583	$ 62,683	$ 67,344
Loans receivable, net of allowance for credit losses		906,636		906,636			838,006
Deferred tax asset		20,386		20,386			15,527
Total assets		1,157,708		1,157,708			1,043,359
Accrued expenses and other liabilities		7,704		7,704			7,251
Accumulated deficit		$ (44,161)		$ (44,161)			$ (31,337)
Tier 1 Leverage ratio		0.0854		0.0854
Provision for credit losses		$ 1,325	275	$ 3,545	275
Net interest income after provision for credit losses		6,388	7,445	12,181	14,171
Loss before income taxes		(846)	1,741	(1,802)	2,852
Benefit for income taxes		(231)	476	(488)	787
Net loss		(615)	1,265	(1,314)	2,065
Total comprehensive income		$ (2,256)	$ (2,901)	$ (1,708)	$ (7,583)
Basic income per share (usd per share) | $ / shares		$ (0.16)	$ 0.32	$ (0.33)	$ 0.52
Diluted income per share (usd per share) | $ / shares		$ (0.16)	$ 0.32	$ (0.33)	$ 0.52
Deferred income taxes				$ (494)	$ 591
Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity		$ 52,445		52,445
Loans receivable, net of allowance for credit losses		913,876		913,876
Deferred tax asset		18,169		18,169
Total assets		1,162,731		1,162,731
Accrued expenses and other liabilities		6,693		6,693
Accumulated deficit		$ (38,127)		$ (38,127)
Tier 1 Leverage ratio		0.0870		0.0870
Provision for credit losses		$ 1,231		$ 2,567
Net interest income after provision for credit losses		6,482		13,159
Loss before income taxes		(752)		(824)
Benefit for income taxes		(206)		(225)
Net loss		(546)		(599)
Total comprehensive income		$ (2,187)		$ (993)
Basic income per share (usd per share) | $ / shares		$ (0.14)		$ (0.15)
Diluted income per share (usd per share) | $ / shares		$ (0.14)		$ (0.15)
Deferred income taxes				$ (231)
Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity		$ (6,034)		(6,034)
Loans receivable, net of allowance for credit losses		(7,240)		(7,240)
Deferred tax asset		2,217		2,217
Total assets		(5,023)		(5,023)
Accrued expenses and other liabilities		1,011		1,011
Accumulated deficit		$ (6,034)		$ (6,034)
Tier 1 Leverage ratio		(0.0016)		(0.0016)
Provision for credit losses		$ 94		$ 978
Net interest income after provision for credit losses		(94)		(978)
Loss before income taxes		(94)		(978)
Benefit for income taxes		(25)		(263)
Net loss		(69)		(715)
Total comprehensive income		$ (69)		$ (715)
Basic income per share (usd per share) | $ / shares		$ (0.02)		$ (0.18)
Diluted income per share (usd per share) | $ / shares		$ (0.02)		$ (0.18)
Deferred income taxes				$ (263)
Transition adjustment related to adoption of ASC326, net of tax
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity	$ (11,510)
Benefit for income taxes	(4,200)
Transition adjustment related to adoption of ASC326, net of tax | CECL adoption transition_ ACL on loans
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity	(13,001)
Transition adjustment related to adoption of ASC326, net of tax | CECL adoption transition_ ACL on Off-BS exposure
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity	(2,737)
Transition adjustment related to adoption of ASC326, net of tax | CECL adoption transition_ DTA Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity	4,228
Transition adjustment related to adoption of ASC326, net of tax | Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity	(6,191)
Transition adjustment related to adoption of ASC326, net of tax | Previously Reported | CECL adoption transition_ ACL on loans
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity	(7,371)
Transition adjustment related to adoption of ASC326, net of tax | Previously Reported | CECL adoption transition_ ACL on Off-BS exposure
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity	(1,094)
Transition adjustment related to adoption of ASC326, net of tax | Previously Reported | CECL adoption transition_ DTA Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity	2,274
Transition adjustment related to adoption of ASC326, net of tax | Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity	(5,319)
Transition adjustment related to adoption of ASC326, net of tax | Adjustment | CECL adoption transition_ ACL on loans
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity	(5,630)
Transition adjustment related to adoption of ASC326, net of tax | Adjustment | CECL adoption transition_ ACL on Off-BS exposure
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity	(1,643)
Transition adjustment related to adoption of ASC326, net of tax | Adjustment | CECL adoption transition_ DTA Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity	$ 1,954