1. Summary of Significant Accounting Policies: Comprehensive Loss: Schedule of Components of Other Comprehensive Loss (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Text Block [Abstract]
Other comprehensive income, before tax amount, beginning	$ (96)	$ (30)
Other comprehensive income, Taxes, beginning	33	11
Other comprehensive income, Net of tax Amount, beginning	(63)	(19)
Unrealized holding gain arising during period, before tax amount	23	(66)
Unrealized holding gain arising during period, taxes	(8)	22
Unrealized holding gain arising during period, net of tax amount	15	(44)
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
Reclassification due to adoption of ASU 2018-02, before tax amount	0
Reclassification due to adoption of ASU 2018-02, taxes	9
Reclassification due to adoption of ASU 2018-02, net of tax amount	(9)
Other comprehensive loss, net, before tax amount	23	(66)
Other comprehensive loss, net, taxes	1	22
Other comprehensive loss, net, net after tax amount	6	(44)
Other comprehensive income, before tax amount, ending	(73)	(96)
Other comprehensive income, Taxes, ending	34	33
Other comprehensive income, Net of tax Amount, ending	$ (57)	$ (63)

Other comprehensive income, before tax amount.

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Other comprehensive income, Net of tax Amount.

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Amount, before tax and adjustment, of unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.

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Amount, after tax and before adjustment, of unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.

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Amount, before adjustment, of tax expense (benefit) for unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.

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Amount before tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

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Amount after tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

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Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

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