3. Changes in Accumulated Other Comprehensive Income: Schedule of Components of Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Text Block [Abstract]
Other comprehensive income, before tax amount, beginning	$ (96)	$ (29)
Other comprehensive income, Taxes, beginning	33	10
Other comprehensive income, Net of tax Amount, beginning	(63)	(19)
Unrealized holding gain arising during period, before tax amount	15	95
Unrealized holding gain arising during period, taxes	(5)	(31)
Unrealized holding gain arising during period, net of tax amount	10	64
Less: reclassification adjustment for gains(losses) realized in net loss, before tax amount	0	0
Less: reclassification adjustment for gains(losses) realized in net loss, taxes	0	0
Less: reclassification adjustment for gains(losses) realized in net loss, net of tax amount	0	0
Other comprehensive loss, net, before tax amount		95
Other comprehensive loss, net, taxes		(31)
Other comprehensive loss, net, net after tax amount		64
Other comprehensive income, before tax amount, ending	(81)	66
Other comprehensive income, Taxes, ending	28	(21)
Other comprehensive income, Net of tax Amount, ending	$ (53)	$ 45