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Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans - USD ($)	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	$ 496,314,000	$ 476,908,000	$ 463,806,000
Non-accrual loans	496,314,000	476,908,000	463,806,000
Loans	383,000	866,000
Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	482,136,000	463,914,000
Non-accrual loans	482,136,000	463,914,000
Special Mention [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	7,002,000	4,049,000
Non-accrual loans	7,002,000	4,049,000
Substandard [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	7,176,000	8,945,000
Non-accrual loans	7,176,000	8,945,000
Loans	383,000	866,000
Construction Portfolio Segment [Member] | Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	12,386,000	3,096,000
Non-accrual loans	12,386,000	3,096,000
Construction to Permanent Portfolio Segment [Member] | Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current		10,627,000
Non-accrual loans		10,627,000
Performing Financial Instruments [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	12,387,000	5,469,000
Performing (accruing) loans current	495,931,000	476,042,000
Performing (accruing) loans	483,544,000	470,573,000
Non-accrual loans	495,931,000	476,042,000
Performing Financial Instruments [Member] | Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	11,373,000	3,613,000
Performing (accruing) loans current	482,136,000	463,914,000
Performing (accruing) loans	470,763,000	460,301,000
Non-accrual loans	482,136,000	463,914,000
Performing Financial Instruments [Member] | Special Mention [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	1,014,000	1,041,000
Performing (accruing) loans current	7,002,000	4,049,000
Performing (accruing) loans	5,988,000	3,008,000
Non-accrual loans	7,002,000	4,049,000
Performing Financial Instruments [Member] | Substandard [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due		815,000
Performing (accruing) loans current	6,793,000	8,079,000
Performing (accruing) loans	6,793,000	7,264,000
Non-accrual loans	6,793,000	8,079,000
Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	12,000	2,733,000
Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	12,000	1,692,000
Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Special Mention [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due		1,041,000
Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	9,075,000	904,000
Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	8,061,000	89,000
Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Special Mention [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	1,014,000
Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Substandard [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due		815,000
Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	3,300,000	1,832,000
Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	3,300,000	1,832,000
Performing Financial Instruments [Member] | Construction Portfolio Segment [Member] | Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	12,386,000	3,096,000
Performing (accruing) loans	12,386,000	3,096,000
Non-accrual loans	12,386,000	3,096,000
Performing Financial Instruments [Member] | Construction to Permanent Portfolio Segment [Member] | Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current		10,627,000
Performing (accruing) loans		10,627,000
Non-accrual loans		10,627,000
Commercial Portfolio Segment [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	61,184,000	53,973,000	56,432,000
Non-accrual loans	61,184,000	53,973,000	56,432,000
Loans		2,000
Commercial Portfolio Segment [Member] | Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	55,984,000	48,078,000
Non-accrual loans	55,984,000	48,078,000
Commercial Portfolio Segment [Member] | Special Mention [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	101,000	121,000
Non-accrual loans	101,000	121,000
Commercial Portfolio Segment [Member] | Substandard [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	5,099,000	5,774,000
Non-accrual loans	5,099,000	5,774,000
Loans		2,000
Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	3,135,000	1,799,000
Performing (accruing) loans current	61,184,000	53,971,000
Performing (accruing) loans	58,049,000	52,172,000
Non-accrual loans	61,184,000	53,971,000
Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member] | Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	3,135,000	1,799,000
Performing (accruing) loans current	55,984,000	48,078,000
Performing (accruing) loans	52,849,000	46,279,000
Non-accrual loans	55,984,000	48,078,000
Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member] | Special Mention [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	101,000	121,000
Performing (accruing) loans	101,000	121,000
Non-accrual loans	101,000	121,000
Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member] | Substandard [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	5,099,000	5,772,000
Performing (accruing) loans	5,099,000	5,772,000
Non-accrual loans	5,099,000	5,772,000
Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due		1,520,000
Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due		1,520,000
Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	3,061,000
Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	3,061,000
Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	74,000	279,000
Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	74,000	279,000
Commercial Real Estate Portfolio Segment [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	273,715,000	254,505,000	255,556,000
Non-accrual loans	273,715,000	254,505,000	255,556,000
Loans		138,000
Commercial Real Estate Portfolio Segment [Member] | Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	265,120,000	248,132,000
Non-accrual loans	265,120,000	248,132,000
Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	6,901,000	3,928,000
Non-accrual loans	6,901,000	3,928,000
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	1,694,000	2,445,000
Non-accrual loans	1,694,000	2,445,000
Loans		138,000
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	5,948,000	1,856,000
Performing (accruing) loans current	273,715,000	254,367,000
Performing (accruing) loans	267,767,000	252,511,000
Non-accrual loans	273,715,000	254,367,000
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member] | Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	4,934,000
Performing (accruing) loans current	265,120,000	248,132,000
Performing (accruing) loans	260,186,000	248,132,000
Non-accrual loans	265,120,000	248,132,000
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member] | Special Mention [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	1,014,000	1,041,000
Performing (accruing) loans current	6,901,000	3,928,000
Performing (accruing) loans	5,887,000	2,887,000
Non-accrual loans	6,901,000	3,928,000
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member] | Substandard [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due		815,000
Performing (accruing) loans current	1,694,000	2,307,000
Performing (accruing) loans	1,694,000	1,492,000
Non-accrual loans	1,694,000	2,307,000
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due		1,041,000
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Special Mention [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due		1,041,000
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	4,324,000	815,000
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	3,310,000
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Special Mention [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	1,014,000
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Substandard [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due		815,000
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	1,624,000
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	1,624,000
Construction Portfolio Segment [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	12,386,000	3,096,000	8,622,000
Non-accrual loans	12,386,000	3,096,000	8,622,000
Construction Portfolio Segment [Member] | Performing Financial Instruments [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	12,386,000	3,096,000
Performing (accruing) loans	12,386,000	3,096,000
Non-accrual loans	12,386,000	3,096,000
Construction to Permanent Portfolio Segment [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	10,669,000	10,627,000	11,725,000
Non-accrual loans	10,669,000	10,627,000	11,725,000
Construction to Permanent Portfolio Segment [Member] | Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	10,669,000
Non-accrual loans	10,669,000
Construction to Permanent Portfolio Segment [Member] | Performing Financial Instruments [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	10,669,000	10,627,000
Performing (accruing) loans	10,669,000	10,627,000
Non-accrual loans	10,669,000	10,627,000
Construction to Permanent Portfolio Segment [Member] | Performing Financial Instruments [Member] | Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	10,669,000
Performing (accruing) loans	10,669,000
Non-accrual loans	10,669,000
Residential Portfolio Segment [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	91,378,000	108,543,000	85,942,000
Non-accrual loans	91,378,000	108,543,000	85,942,000
Loans	380,000	719,000
Residential Portfolio Segment [Member] | Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	90,998,000	107,824,000
Non-accrual loans	90,998,000	107,824,000
Residential Portfolio Segment [Member] | Substandard [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	380,000	719,000
Non-accrual loans	380,000	719,000
Loans	380,000	719,000
Residential Portfolio Segment [Member] | Performing Financial Instruments [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	2,936,000	1,812,000
Performing (accruing) loans current	90,998,000	107,824,000
Performing (accruing) loans	88,062,000	106,012,000
Non-accrual loans	90,998,000	107,824,000
Residential Portfolio Segment [Member] | Performing Financial Instruments [Member] | Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	2,936,000	1,812,000
Performing (accruing) loans current	90,998,000	107,824,000
Performing (accruing) loans	88,062,000	106,012,000
Non-accrual loans	90,998,000	107,824,000
Residential Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due		172,000
Residential Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due		172,000
Residential Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	1,342,000	87,000
Residential Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	1,342,000	87,000
Residential Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	1,594,000	1,553,000
Residential Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	1,594,000	1,553,000
Consumer Portfolio Segment [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	46,982,000	46,164,000	45,529,000
Non-accrual loans	46,982,000	46,164,000	$ 45,529,000
Loans	3,000	7,000
Consumer Portfolio Segment [Member] | Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	46,979,000	46,157,000
Non-accrual loans	46,979,000	46,157,000
Consumer Portfolio Segment [Member] | Substandard [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	3,000	7,000
Non-accrual loans	3,000	7,000
Loans	3,000	7,000
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	368,000	2,000
Performing (accruing) loans current	46,979,000	46,157,000
Performing (accruing) loans	46,611,000	46,155,000
Non-accrual loans	46,979,000	46,157,000
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member] | Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	368,000	2,000
Performing (accruing) loans current	46,979,000	46,157,000
Performing (accruing) loans	46,611,000	46,155,000
Non-accrual loans	46,979,000	46,157,000
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	12,000
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	12,000
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	348,000	2,000
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	348,000	$ 2,000
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	8,000
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	$ 8,000

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