Basis of Financial Statement Presentation and Restatement of Consolidated Financial Statements - Restatement (Details) $ / shares in Units, $ in Thousands		3 Months Ended
	Jan. 01, 2023 USD ($)	Mar. 31, 2023 USD ($) $ / shares	Mar. 31, 2022 USD ($) $ / shares	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity		$ 48,644	$ 62,683	$ 59,583	$ 67,344
Loans receivable, net of allowance for credit losses		853,989		838,006
Deferred tax asset		19,583		15,527
Total assets		1,095,224		1,043,359
Accrued expenses and other liabilities		7,159		7,251
Accumulated deficit		$ (43,546)		(31,337)
Tier 1 Leverage ratio		0.0910
Provision for credit losses		$ 2,220	0
Net interest income after provision for credit losses		5,793	6,726
Loss before income taxes		(956)	1,111
Benefit for income taxes		(257)	311
Net loss		(699)	800
Total comprehensive income		$ 548	$ (4,682)
Basic income per share (usd per share) | $ / shares		$ (0.18)	$ 0.20
Diluted income per share (usd per share) | $ / shares		$ (0.18)	$ 0.20
Deferred income taxes		$ (261)	$ 298
Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity		54,609
Loans receivable, net of allowance for credit losses		860,968
Deferred tax asset		17,392
Total assets		1,100,012
Accrued expenses and other liabilities		5,982
Accumulated deficit		$ (37,581)
Tier 1 Leverage ratio		0.0925
Provision for credit losses		$ 1,336
Net interest income after provision for credit losses		6,677
Loss before income taxes		(72)
Benefit for income taxes		(19)
Net loss		(53)
Total comprehensive income		$ 1,194
Basic income per share (usd per share) | $ / shares		$ (0.01)
Diluted income per share (usd per share) | $ / shares		$ (0.01)
Deferred income taxes		$ (23)
Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity		(5,965)
Loans receivable, net of allowance for credit losses		(6,979)
Deferred tax asset		2,191
Total assets		(4,788)
Accrued expenses and other liabilities		1,177
Accumulated deficit		$ (5,965)
Tier 1 Leverage ratio		(0.0015)
Provision for credit losses		$ 884
Net interest income after provision for credit losses		(884)
Loss before income taxes		(884)
Benefit for income taxes		(238)
Net loss		(646)
Total comprehensive income		$ (646)
Basic income per share (usd per share) | $ / shares		$ (0.17)
Diluted income per share (usd per share) | $ / shares		$ (0.17)
Deferred income taxes		$ (238)
Transition adjustment related to adoption of ASC 326, 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 ASC 326, 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 ASC 326, 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 ASC 326, 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 ASC 326, net of tax | Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity	(6,191)
Transition adjustment related to adoption of ASC 326, 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 ASC 326, 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 ASC 326, 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 ASC 326, net of tax | Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity	(5,319)			$ (5,300)
Transition adjustment related to adoption of ASC 326, 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 ASC 326, 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 ASC 326, net of tax | Adjustment | CECL adoption transition_ DTA Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity	$ 1,954