5. Investment Securities: Schedule of Continuous Unrealized Loss Positions on Held-To-Maturity Investments (Details) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2015 USD ($)	Dec. 31, 2014 USD ($)
Number of Securities	20	19
Less than Twelve Months, Fair Value	$ 4,504	$ 246
Less than 12 Months, Unrealized Losses	72	(4)
Twelve Months or Longer, Fair Value	818	4,730
12 Months or Longer, Unrealized Losses	(20)	(77)
Total Fair Value	5,322	4,976
Total Unrealized Losses	$ (94)	$ (81)
US Government Agency Securities
Number of Securities	11	13
Less than Twelve Months, Fair Value	$ 2,455	$ 246
Less than 12 Months, Unrealized Losses	(43)	(4)
Twelve Months or Longer, Fair Value	590	3,290
12 Months or Longer, Unrealized Losses	(9)	(57)
Total Fair Value	3,045	3,536
Total Unrealized Losses	$ (52)	$ (61)
Government Sponsored Enterprises residential mortgage-backed securities
Number of Securities	9	6
Less than Twelve Months, Fair Value	$ 2,050	$ 0
Less than 12 Months, Unrealized Losses	(29)	0
Twelve Months or Longer, Fair Value	228	1,440
12 Months or Longer, Unrealized Losses	(13)	(20)
Total Fair Value	2,277	1,440
Total Unrealized Losses	$ (42)	$ (20)