8. Fair Value: Schedule of Fair Value of Financial Instruments at Year-End (Details) - USD ($)		Mar. 31, 2017	Dec. 31, 2016
Assets:
Loans, net of allowance for loan losses		$ 25,373,470	$ 26,534,607
Servicing asset		316,720	312,814
Liabilities:
Savings deposits		12,129,738	11,734,512
Accrued interest payable		10,886	10,997
Carrying Amount
Assets:
Loans, net of allowance for loan losses	[1]	25,373,000	26,296,000
Liabilities:
Time deposits	[2]	9,422,000	10,411,000
Fair Value
Assets:
Loans, net of allowance for loan losses	[1]	25,567,000	26,617,000
Liabilities:
Time deposits	[2]	9,412,000	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		9,795,000	7,803,000
Accrued interest receivable		147,000	141,000
Liabilities:
Demand Deposits		29,318,000	28,497,000
Savings deposits		12,130,000	11,735,000
Accrued interest payable		11,000	11,000
Fair Value, Inputs, Level 1 | Fair Value
Assets:
Cash and cash equivalents		9,975,000	7,803,000
Accrued interest receivable		147,000	141,000
Liabilities:
Demand Deposits		29,318,000	28,497,000
Savings deposits		12,130,000	11,735,000
Accrued interest payable		11,000	11,000
Fair Value, Inputs, Level 3
Assets:
Servicing asset		317,000	313,000
Fair Value, Inputs, Level 3 | Carrying Amount
Assets:
Servicing asset		317,000	313,000
Fair Value, Inputs, Level 3 | Fair Value
Assets:
Servicing asset		$ 317,000	$ 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.