8. Fair Value: Schedule of Fair Value of Financial Instruments at Year-End (Details) - USD ($)		Sep. 30, 2017	Dec. 31, 2016
Assets:
Loans, net of allowance for loan losses		$ 25,290,611	$ 26,534,607
Servicing asset		329,753	312,814
Liabilities:
Savings deposits		11,704,051	11,734,512
Accrued interest payable		11,624	10,997
Carrying Amount
Assets:
Loans, net of allowance for loan losses	[1]	25,291,000	26,534,000
Liabilities:
Time deposits	[2]	8,625,000	10,411,000
Fair Value
Assets:
Loans, net of allowance for loan losses	[1]	25,499,000	26,617,000
Liabilities:
Time deposits	[2]	8,586,000	10,395,000
Fair Value, Inputs, Level 1
Assets:
Servicing asset		0	0
Fair Value, Inputs, Level 1 | Carrying Amount
Assets:
Cash and cash equivalents		14,802,000	7,803,000
Fair Value, Inputs, Level 1 | Fair Value
Assets:
Cash and cash equivalents		14,802,000	7,803,000
Fair Value, Inputs, Level 2
Assets:
Servicing asset		0	0
Fair Value, Inputs, Level 2 | Carrying Amount
Assets:
Accrued interest receivable		157,000	141,000
Liabilities:
Demand Deposits		37,629,000	28,497,000
Savings deposits		11,704,000	11,735,000
Accrued interest payable		12,000	11,000
Fair Value, Inputs, Level 2 | Fair Value
Assets:
Accrued interest receivable		157,000	141,000
Liabilities:
Demand Deposits		37,629,000	28,497,000
Savings deposits		11,704,000	11,735,000
Accrued interest payable		12,000	11,000
Fair Value, Inputs, Level 3
Assets:
Servicing asset		330,000	313,000
Fair Value, Inputs, Level 3 | Carrying Amount
Assets:
Servicing asset		330,000	313,000
Fair Value, Inputs, Level 3 | Fair Value
Assets:
Servicing asset		$ 330,000	$ 313,000

[1] Level 2 for non-impaired loans; Level 3 for impaired loans.

[2] Level 1 for variable rate instruments, level 3 for fixed rate instruments.