3. Investments: Held-to-maturity Securities (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2013
Held-to-maturity Securities, Amortized Cost before Other than Temporary Impairment	$ 11,895,000
Held-to-maturity Securities, Unrecognized Holding Gain	596,000
Held-to-maturity Securities, Unrecognized Holding Loss	(5,000)
Held-to-maturity, fair value	12,485,687	0
US Government Agencies Debt Securities
Held-to-maturity Securities, Amortized Cost before Other than Temporary Impairment	3,605,000
Held-to-maturity Securities, Unrecognized Holding Gain	159,000
Held-to-maturity Securities, Unrecognized Holding Loss	(4,000)
Held-to-maturity, fair value	3,760,000
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises
Held-to-maturity Securities, Amortized Cost before Other than Temporary Impairment	8,290,000
Held-to-maturity Securities, Unrecognized Holding Gain	437,000
Held-to-maturity Securities, Unrecognized Holding Loss	(1,000)
Held-to-maturity, fair value	$ 8,726,000