Loans Held for Investment - Summary of Changes in the Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance			$ 6,203	$ 7,298	$ 7,298
Charge-offs			(1,365)		(1,807)
Recoveries			166		63
Provision for Credit Loss	$ 300	$ 725	820	349	649
Balance at end of period	5,824		5,824		6,203
Ending allowance balance for loans individually evaluated	899		899		911
Ending allowance balance for loans collectively evaluated	4,925		4,925		5,292
Loans Receivable
Total	731,358		731,358		666,618
Balance of loans individually evaluated	11,708		11,708		8,800
Balance of loans collectively evaluated	719,650		719,650		657,818
1-4 Family Residential
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance			1,210	839	839
Charge-offs			(139)		(5)
Recoveries			6
Provision for Credit Loss			205
Reallocations					376
Balance at end of period	1,282		1,282		1,210
Ending allowance balance for loans individually evaluated	507		507		361
Ending allowance balance for loans collectively evaluated	775		775		849
Loans Receivable
Total	255,979		255,979		248,897
Balance of loans individually evaluated	9,250		9,250		6,173
Balance of loans collectively evaluated	246,729		246,729		242,724
Construction
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance			1	3	3
Recoveries			2
Provision for Credit Loss			41
Reallocations					(2)
Balance at end of period	44		44		1
Ending allowance balance for loans collectively evaluated	44		44		1
Loans Receivable
Total	29,005		29,005		15,764
Balance of loans collectively evaluated	29,005		29,005		15,764
Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance			2,218	880	880
Recoveries					3
Provision for Credit Loss			98
Reallocations					1,335
Balance at end of period	2,316		2,316		2,218
Ending allowance balance for loans collectively evaluated	2,316		2,316		2,218
Loans Receivable
Total	230,219		230,219		206,267
Balance of loans individually evaluated	148		148
Balance of loans collectively evaluated	230,071		230,071		206,267
Other Commercial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance			1,586	4,303	4,303
Charge-offs			(1,040)		(1,277)
Recoveries			128		30
Provision for Credit Loss			213		649
Reallocations					(2,119)
Balance at end of period	887		887		1,586
Ending allowance balance for loans individually evaluated	207		207		492
Ending allowance balance for loans collectively evaluated	680		680		1,094
Loans Receivable
Total	82,549		82,549		69,619
Balance of loans individually evaluated	730		730		1,795
Balance of loans collectively evaluated	81,819		81,819		67,824
Home Equity
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance			536	385	385
Charge-offs					(47)
Provision for Credit Loss			156
Reallocations					198
Balance at end of period	692		692		536
Ending allowance balance for loans individually evaluated	139		139
Ending allowance balance for loans collectively evaluated	553		553		536
Loans Receivable
Total	105,771		105,771		98,331
Balance of loans individually evaluated	1,427		1,427		723
Balance of loans collectively evaluated	104,344		104,344		97,608
Other Consumer
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance			652	$ 888	888
Charge-offs			(186)		(478)
Recoveries			30		30
Provision for Credit Loss			107
Reallocations					212
Balance at end of period	603		603		652
Ending allowance balance for loans individually evaluated	46		46		58
Ending allowance balance for loans collectively evaluated	557		557		594
Loans Receivable
Total	27,835		27,835		27,740
Balance of loans individually evaluated	153		153		109
Balance of loans collectively evaluated	$ 27,682		$ 27,682		$ 27,631