3. Investments: Schedule of Continuous Unrealized Loss Positions on Held-To-Maturity Investments (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Total
Number of Securities	17	19
Less than Twelve Months, Fair Value	$ 3,902	$ 246
Less than 12 Months, Unrealized Losses	(51)	(4)
Twelve Months or Longer, Fair Value	470	4,730
12 Months or Longer, Unrealized Losses	(17)	(77)
Total Fair Value	4,372	4,976
Total Unrealized Losses	$ (68)	$ (81)
US Government Agencies Debt Securities
Number of Securities	9	13
Less than Twelve Months, Fair Value	$ 2,416	$ 246
Less than 12 Months, Unrealized Losses	(32)	(4)
Twelve Months or Longer, Fair Value	243	3,290
12 Months or Longer, Unrealized Losses	(6)	(57)
Total Fair Value	2,659	3,536
Total Unrealized Losses	$ (38)	$ (61)
Collateralized Mortgage Backed Securities
Number of Securities	8	6
Less than Twelve Months, Fair Value	$ 1,486	$ 0
Less than 12 Months, Unrealized Losses	(19)	0
Twelve Months or Longer, Fair Value	227	1,440
12 Months or Longer, Unrealized Losses	(11)	(20)
Total Fair Value	1,713	1,440
Total Unrealized Losses	$ (30)	$ (20)