Loans Held for Investment - Summary of Investment In Loans By Credit Quality Indicators by Year of Origin and Gross Charge-Offs (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Financing Receivable, Credit Quality Indicator [Line Items]
2025	$ 45,696	$ 143,212
2024	140,345	145,098
2023	130,296	123,258
2022	116,378	52,321
2021	51,297	46,407
Prior	163,314	130,752
Revolving Lines	124,382	117,017
Total	771,708	758,065
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025	45,609	142,907
2024	139,503	141,573
2023	125,812	118,041
2022	111,224	51,178
2021	49,190	45,351
Prior	157,957	127,070
Revolving Lines	120,859	114,058
Total	750,154	740,178
Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2025		189
2024	186	0
2023		1,681
2022	256
2021	42
Prior	299	220
Revolving Lines	224
Total	1,007	2,090
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025		42
2024	563	3,444
2023	4,481	3,526
2022	4,898	1,129
2021	2,056	1,056
Prior	5,058	3,462
Revolving Lines	3,161	2,838
Total	20,217	15,497
Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2025	87	74
2024	93	81
2023	3	10
2022		14
2021	9
Prior		0
Revolving Lines	138	121
Total	330	300
Gross charge-offs
Financing Receivable, Credit Quality Indicator [Line Items]
2024		123
2023	87	374
2022		45
2021		178
Prior	37	21
Revolving Lines	334	920
Total	458	1,661
1-4 Family Residential
Financing Receivable, Credit Quality Indicator [Line Items]
2025	3,599	15,139
2024	15,264	65,145
2023	63,735	70,052
2022	68,334	31,886
2021	31,336	22,252
Prior	69,832	50,168
Total	252,100	254,642
1-4 Family Residential | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025	3,599	15,139
2024	14,832	61,966
2023	59,528	66,541
2022	64,873	30,758
2021	29,400	22,112
Prior	66,882	47,915
Total	239,114	244,431
1-4 Family Residential | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2023		257
2022	256
Prior	30	32
Total	286	289
1-4 Family Residential | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2024	432	3,179
2023	4,207	3,254
2022	3,205	1,128
2021	1,936	140
Prior	2,920	2,221
Total	12,700	9,922
Residential Construction
Financing Receivable, Credit Quality Indicator [Line Items]
2025	1,436	23,044
2024	30,067	11,095
2023	7,425
Total	38,928	34,139
Residential Construction | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025	1,436	23,044
2024	30,067	11,095
2023	7,425
Total	38,928	34,139
Commercial Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
2025	7,917	50,394
2024	55,699	47,231
2023	46,559	40,122
2022	37,107	11,240
2021	11,080	18,086
Prior	78,341	73,990
Revolving Lines	16,351
Total	253,054	241,063
Commercial Real Estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025	7,917	50,394
2024	55,699	47,231
2023	46,559	40,122
2022	37,107	11,240
2021	11,080	17,629
Prior	77,891	73,990
Revolving Lines	16,351
Total	252,604	240,606
Commercial Real Estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2021		457
Prior	450
Total	450	457
Other Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
2025	21,956	39,571
2024	27,524	4,306
2023	4,187	7,757
2022	6,655	8,062
2021	7,837	5,500
Prior	13,720	5,565
Revolving Lines	15,773	24,220
Total	97,652	94,981
Other Commercial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025	21,956	39,529
2024	27,357	4,011
2023	3,931	6,107
2022	5,004	8,062
2021	7,675	5,041
Prior	11,765	4,138
Revolving Lines	14,945	23,556
Total	92,633	90,444
Other Commercial | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2023		1,424
2021	42
Prior	269	188
Revolving Lines	224
Total	535	1,612
Other Commercial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025		42
2024	82	250
2023	256	226
2022	1,651	1,239
2021	120	459
Prior	1,686
Revolving Lines	558	566
Total	4,353	2,782
Other Commercial | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2024	85	45
Revolving Lines	46	98
Total	131	143
Home Equity
Financing Receivable, Credit Quality Indicator [Line Items]
2025	294	4,592
2024	4,482	7,597
2023	7,427	1,689
2022	1,593	73
2021	56	62
Prior	924	1,022
Revolving Lines	91,313	91,515
Total	106,089	106,550
Home Equity | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025	207	4,592
2024	4,482	7,597
2023	7,427	1,643
2022	1,569	73
2021	56	62
Prior	922	1,020
Revolving Lines	88,618	89,267
Total	103,281	104,254
Home Equity | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2023		46
2022	24
Prior	2	2
Revolving Lines	2,603	2,225
Total	2,629	2,273
Home Equity | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2025	87
Revolving Lines	92	23
Total	179	23
Other Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2025	10,494	10,472
2024	7,309	9,724
2023	963	3,638
2022	2,689	1,060
2021	988	507
Prior	497	7
Revolving Lines	945	1,282
Total	23,885	26,690
Other Consumer | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025	10,494	10,209
2024	7,066	9,673
2023	942	3,628
2022	2,671	1,045
2021	979	507
Prior	497	7
Revolving Lines	945	1,235
Total	23,594	26,304
Other Consumer | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2025		189
2024	186
Total	186	189
Other Consumer | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2024	49	15
2023	18
2022	18	1
Revolving Lines		47
Total	85	63
Other Consumer | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2025		74
2024	8	36
2023	3	10
2022		14
2021	9
Total	$ 20	$ 134