Loans Receivable Held for Investment, Allowance for Loan Losses and Recorded Investment in Loans by Type of Loans and Based on Impairment Method (Details) - USD ($) $ in Thousands	Dec. 31, 2021		Dec. 31, 2020	Dec. 31, 2019
Ending Allowance Balance Attributable to Loans [Abstract]
Individually evaluated for impairment	$ 7		$ 141
Collectively evaluated for impairment	3,384		3,074
Total ending allowance balance	3,391	[1]	3,215	$ 3,182
Loans [Abstract]
Loans individually evaluated for impairment	2,301		4,731
Loans collectively evaluated for impairment	447,692		358,613
Subtotal	449,993
Loans acquired in the merger	203,753
Gross loans receivable	653,746		363,344
Real Estate [Member] | Single Family [Member]
Ending Allowance Balance Attributable to Loans [Abstract]
Individually evaluated for impairment	3		89
Collectively evaluated for impairment	142		207
Total ending allowance balance	145	[1]	296	312
Loans [Abstract]
Loans individually evaluated for impairment	65		573
Loans collectively evaluated for impairment	32,599		47,784
Subtotal	32,664
Loans acquired in the merger	12,708
Gross loans receivable	45,372		48,357
Real Estate [Member] | Multi-Family [Member]
Ending Allowance Balance Attributable to Loans [Abstract]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	2,657		2,433
Total ending allowance balance	2,657	[1]	2,433	2,319
Loans [Abstract]
Loans individually evaluated for impairment	282		298
Loans collectively evaluated for impairment	353,179		273,566
Subtotal	353,461
Loans acquired in the merger	41,769
Gross loans receivable	395,230		273,864
Real Estate [Member] | Commercial Real Estate [Member]
Ending Allowance Balance Attributable to Loans [Abstract]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	236		222
Total ending allowance balance	236	[1]	222	133
Loans [Abstract]
Loans individually evaluated for impairment	0		0
Loans collectively evaluated for impairment	25,507		24,322
Subtotal	25,507
Loans acquired in the merger	67,686
Gross loans receivable	93,193		24,322
Real Estate [Member] | Church [Member]
Ending Allowance Balance Attributable to Loans [Abstract]
Individually evaluated for impairment	4		52
Collectively evaluated for impairment	99		185
Total ending allowance balance	103	[1]	237	362
Loans [Abstract]
Loans individually evaluated for impairment	1,954		3,813
Loans collectively evaluated for impairment	9,058		12,495
Subtotal	11,012
Loans acquired in the merger	11,491
Gross loans receivable	22,503		16,308
Real Estate [Member] | Construction [Member]
Ending Allowance Balance Attributable to Loans [Abstract]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	212		22
Total ending allowance balance	212	[1]	22	48
Loans [Abstract]
Loans individually evaluated for impairment	0		0
Loans collectively evaluated for impairment	24,225		430
Subtotal	24,225
Loans acquired in the merger	7,847
Gross loans receivable	32,072		430
Commercial - Other [Member]
Ending Allowance Balance Attributable to Loans [Abstract]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	23		4
Total ending allowance balance	23	[1]	4	7
Loans [Abstract]
Loans individually evaluated for impairment	0		47
Loans collectively evaluated for impairment	3,124		9
Subtotal	3,124
Loans acquired in the merger	43,415
Gross loans receivable	46,539		56
SBA [Member]
Ending Allowance Balance Attributable to Loans [Abstract]
Individually evaluated for impairment	0
Collectively evaluated for impairment	15
Total ending allowance balance	15
Loans [Abstract]
Loans individually evaluated for impairment	0
Loans collectively evaluated for impairment	0
Subtotal	0
Loans acquired in the merger	18,837
Gross loans receivable	18,837
Consumer [Member]
Ending Allowance Balance Attributable to Loans [Abstract]
Individually evaluated for impairment			0
Collectively evaluated for impairment			1
Total ending allowance balance	15	[1]	1	$ 1
Loans [Abstract]
Loans individually evaluated for impairment			0
Loans collectively evaluated for impairment			7
Gross loans receivable	$ 0		$ 7

[1] Loans acquirqed in the City First Merger and PPP loans originated since the merger were not considered in this analysis.