6. Loans and Allowance For Loan Losses: Schedule of Bank Loans by Class According to Credit Quality (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Commercial real estate	$ 20,467	$ 21,488
Consumer real estate	1,907	2,232
Consumer loans other	889	966
Total consumer loans	2,796	3,198
Good/Excellent
Total commercial loans	302	309
Satisfactory
Total commercial loans	16,293	18,011
Pass
Total commercial loans	3,308	2,333
Special Mention
Total commercial loans	641	844
Substandard
Total commercial loans	1,961	1,843
Doubtful
Total commercial loans	296	297
Total
Total commercial loans	22,801	23,637
Performing
Consumer real estate	1,359	1,659
Consumer loans other	836	904
Total consumer loans	2,195	2,563
Nonperforming
Consumer real estate	548	573
Consumer loans other	53	62
Total consumer loans	601	635
Commercial And Industrial | Good/Excellent
Total commercial loans	260	260
Commercial And Industrial | Satisfactory
Total commercial loans	1,220	1,073
Commercial And Industrial | Pass
Total commercial loans	286	207
Commercial And Industrial | Special Mention
Total commercial loans	30	38
Commercial And Industrial | Substandard
Total commercial loans	462	495
Commercial And Industrial | Doubtful
Total commercial loans	76	76
Commercial And Industrial | Total
Total commercial loans	2,334	2,149
Consumer Real Estate | Total | Home Equity
Consumer real estate	794	799
Consumer Real Estate | Total | Home Equity Line Of Credit
Consumer real estate	18	19
Consumer Real Estate | Total | 1-4 Family Residential Mortgages
Consumer real estate	1,095	1,414
Consumer Real Estate | Performing | Home Equity
Consumer real estate	304	301
Consumer Real Estate | Performing | Home Equity Line Of Credit
Consumer real estate	18	19
Consumer Real Estate | Performing | 1-4 Family Residential Mortgages
Consumer real estate	1,037	1,339
Consumer Real Estate | Nonperforming | Home Equity
Consumer real estate	490	448
Consumer Real Estate | Nonperforming | Home Equity Line Of Credit
Consumer real estate	0	0
Consumer Real Estate | Nonperforming | 1-4 Family Residential Mortgages
Consumer real estate	58	75
Consumer And Other Loans | Total | Student Loans
Consumer loans other	773	855
Consumer And Other Loans | Total | Other
Consumer loans other	116	111
Consumer And Other Loans | Performing | Student Loans
Consumer loans other	721	794
Consumer And Other Loans | Performing | Other
Consumer loans other	115	110
Consumer And Other Loans | Nonperforming | Student Loans
Consumer loans other	52	61
Consumer And Other Loans | Nonperforming | Other
Consumer loans other	1	1
Commercial Real Estate Portfolio Segment | Good/Excellent
Commercial real estate	42	49
Commercial Real Estate Portfolio Segment | Satisfactory
Commercial real estate	15,073	16,938
Commercial Real Estate Portfolio Segment | Pass
Commercial real estate	3,022	2,126
Commercial Real Estate Portfolio Segment | Special Mention
Commercial real estate	611	806
Commercial Real Estate Portfolio Segment | Substandard
Commercial real estate	1,499	1,348
Commercial Real Estate Portfolio Segment | Doubtful
Commercial real estate	220	221
Commercial Real Estate Portfolio Segment | Total
Commercial real estate	20,467	21,488
Commercial | Commercial And Industrial | Good/Excellent
Total commercial loans	260	260
Commercial | Commercial And Industrial | Satisfactory
Total commercial loans	355	331
Commercial | Commercial And Industrial | Pass
Total commercial loans	6	9
Commercial | Commercial And Industrial | Special Mention
Total commercial loans	30	38
Commercial | Commercial And Industrial | Substandard
Total commercial loans	219	252
Commercial | Commercial And Industrial | Doubtful
Total commercial loans	0	0
Commercial | Commercial And Industrial | Total
Total commercial loans	870	890
Asset Based | Commercial And Industrial | Good/Excellent
Total commercial loans	0	0
Asset Based | Commercial And Industrial | Satisfactory
Total commercial loans	865	742
Asset Based | Commercial And Industrial | Pass
Total commercial loans	247	198
Asset Based | Commercial And Industrial | Special Mention
Total commercial loans	0	0
Asset Based | Commercial And Industrial | Substandard
Total commercial loans	243	243
Asset Based | Commercial And Industrial | Doubtful
Total commercial loans	76	76
Asset Based | Commercial And Industrial | Total
Total commercial loans	1,431	1,259
Commercial Mortgages | Commercial Real Estate Portfolio Segment | Good/Excellent
Commercial real estate	0	0
Commercial Mortgages | Commercial Real Estate Portfolio Segment | Satisfactory
Commercial real estate	6,344	8,193
Commercial Mortgages | Commercial Real Estate Portfolio Segment | Pass
Commercial real estate	2,282	1,375
Commercial Mortgages | Commercial Real Estate Portfolio Segment | Special Mention
Commercial real estate	504	537
Commercial Mortgages | Commercial Real Estate Portfolio Segment | Substandard
Commercial real estate	1,059	1,059
Commercial Mortgages | Commercial Real Estate Portfolio Segment | Doubtful
Commercial real estate	220	221
Commercial Mortgages | Commercial Real Estate Portfolio Segment | Total
Commercial real estate	10,409	11,385
SBA Loans | Commercial And Industrial | Good/Excellent
Total commercial loans	0
SBA Loans | Commercial And Industrial | Satisfactory
Total commercial loans	0
SBA Loans | Commercial And Industrial | Pass
Total commercial loans	33
SBA Loans | Commercial And Industrial | Special Mention
Total commercial loans	0
SBA Loans | Commercial And Industrial | Substandard
Total commercial loans	0
SBA Loans | Commercial And Industrial | Doubtful
Total commercial loans	0
SBA Loans | Commercial And Industrial | Total
Total commercial loans	33
SBA Loans | Commercial Real Estate Portfolio Segment | Good/Excellent
Commercial real estate	0	0
SBA Loans | Commercial Real Estate Portfolio Segment | Satisfactory
Commercial real estate	217	2
SBA Loans | Commercial Real Estate Portfolio Segment | Pass
Commercial real estate	0	0
SBA Loans | Commercial Real Estate Portfolio Segment | Special Mention
Commercial real estate	0	160
SBA Loans | Commercial Real Estate Portfolio Segment | Substandard
Commercial real estate	248	93
SBA Loans | Commercial Real Estate Portfolio Segment | Doubtful
Commercial real estate	0	0
SBA Loans | Commercial Real Estate Portfolio Segment | Total
Commercial real estate	465	255
Construction | Commercial Real Estate Portfolio Segment | Good/Excellent
Commercial real estate	0	0
Construction | Commercial Real Estate Portfolio Segment | Satisfactory
Commercial real estate	681	542
Construction | Commercial Real Estate Portfolio Segment | Pass
Commercial real estate	0	0
Construction | Commercial Real Estate Portfolio Segment | Special Mention
Commercial real estate	0	0
Construction | Commercial Real Estate Portfolio Segment | Substandard
Commercial real estate	0	0
Construction | Commercial Real Estate Portfolio Segment | Doubtful
Commercial real estate	0	0
Construction | Commercial Real Estate Portfolio Segment | Total
Commercial real estate	681	542
Religious Organizations | Commercial Real Estate Portfolio Segment | Good/Excellent
Commercial real estate	42	49
Religious Organizations | Commercial Real Estate Portfolio Segment | Satisfactory
Commercial real estate	7,831	8,201
Religious Organizations | Commercial Real Estate Portfolio Segment | Pass
Commercial real estate	740	751
Religious Organizations | Commercial Real Estate Portfolio Segment | Special Mention
Commercial real estate	107	109
Religious Organizations | Commercial Real Estate Portfolio Segment | Substandard
Commercial real estate	192	196
Religious Organizations | Commercial Real Estate Portfolio Segment | Doubtful
Commercial real estate	0	0
Religious Organizations | Commercial Real Estate Portfolio Segment | Total
Commercial real estate	$ 8,912	$ 9,306