5. Investment Securities: Schedule of Unrealized Loss on Investments (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Held-to-maturity, Securities in Unrealized Loss Positions, Number of securities	35	5
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 8,359	$ 999
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss	(365)	(5)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value	8,360	999
Held-to-maturity Securities, Continuous Unrealized Loss Position, Aggregate Loss	(365)	(5)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss	0	0
US Government Agencies Debt Securities
Held-to-maturity, Securities in Unrealized Loss Positions, Number of securities	15	3
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	3,881	746
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss	(216)	(4)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value	3,881	746
Held-to-maturity Securities, Continuous Unrealized Loss Position, Aggregate Loss	(216)	(4)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss	0	0
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises
Held-to-maturity, Securities in Unrealized Loss Positions, Number of securities	20	2
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	4,479	253
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss	(149)	(1)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value	4,479	253
Held-to-maturity Securities, Continuous Unrealized Loss Position, Aggregate Loss	(149)	(1)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss	$ 0	$ 0