Loans Receivable Loans Receivable: Average Recorded Investment and Interest Income Recognized (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	$ 43,315	$ 25,986
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	2,157	1,403
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	1,006	1,254
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized	64	68
Impaired Financing Receivable, Average Recorded Investment	44,321	27,240
Impaired Financing Receivable, Interest Income, Accrual Method	2,221	1,471
One-to-four family, residential, owner occupied
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	184	217
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	11	12
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	490	498
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized	28	31
Impaired Financing Receivable, Average Recorded Investment	674	715
Impaired Financing Receivable, Interest Income, Accrual Method	39	43
One-to-four family residential non-owner occupied
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	712	947
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	23	62
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	516	756
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized	36	37
Impaired Financing Receivable, Average Recorded Investment	1,228	1,703
Impaired Financing Receivable, Interest Income, Accrual Method	59	99
Multifamily
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	1,317	828
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	69	0
Impaired Financing Receivable, Average Recorded Investment	1,317	828
Impaired Financing Receivable, Interest Income, Accrual Method	69	0
Commercial Real Estate
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	41,102	23,994
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	2,054	1,329
Impaired Financing Receivable, Average Recorded Investment	41,102	23,994
Impaired Financing Receivable, Interest Income, Accrual Method	$ 2,054	$ 1,329