Loans Receivable Loans Receivable: Schedule of Loans by Maturity and Interest Rate Type (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Fixed Rate
Schedule of Maturity of Loans and Financing Receivables [Abstract]
Due within one year	$ 29,997	$ 44,445
After one year through three years	63,055	53,076
After three years through five years	68,659	56,194
After five years through ten years	126,762	125,884
Thereafter	207,055	192,061
Loans receivable, outstanding maturities, by rate type	495,528	471,660
Adjustable Rate
Schedule of Maturity of Loans and Financing Receivables [Abstract]
Due within one year	297,221	248,739
After one year through three years	102,248	98,652
After three years through five years	137,487	105,929
After five years through ten years	86,404	112,449
Thereafter	3,350	0
Loans receivable, outstanding maturities, by rate type	$ 626,710	$ 565,769