Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans (USD $)	Dec. 31, 2014	Dec. 31, 2013
Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items]
Greater Than 90 Days Past Due and Accruing	$ 279,000	$ 866,000
Non-Accrual and Past Due Loans [Member] \| Commercial Portfolio Segment [Member] \| Pass [Member]
Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items]
Greater Than 90 Days Past Due and Accruing	279,000	25,000
Total Non-Accrual and Past Due Loans	279,000	25,000
Non-Accrual and Past Due Loans [Member] \| Commercial Portfolio Segment [Member] \| Substandard [Member]
Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items]
Non-Accrual Loans, Greater Than 90 Days	2,000	2,000
Non-Accrual Loans, Total Past Due	2,000	2,000
Non-Accrual Loans, Current		6,150,000
Total Non-Accrual and Past Due Loans	2,000	6,152,000
Non-Accrual and Past Due Loans [Member] \| Commercial Portfolio Segment [Member]
Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items]
Non-Accrual Loans, Greater Than 90 Days	2,000	2,000
Non-Accrual Loans, Total Past Due	2,000	2,000
Non-Accrual Loans, Current		6,150,000
Greater Than 90 Days Past Due and Accruing	279,000	25,000
Total Non-Accrual and Past Due Loans	281,000	6,177,000
Non-Accrual and Past Due Loans [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Substandard [Member]
Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items]
Non-Accrual Loans, Greater Than 90 Days		1,765,000
Non-Accrual Loans, Total Past Due		1,765,000
Non-Accrual Loans, Current	138,000
Greater Than 90 Days Past Due and Accruing		841,000
Total Non-Accrual and Past Due Loans	138,000	2,606,000
Non-Accrual and Past Due Loans [Member] \| Commercial Real Estate Portfolio Segment [Member]
Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items]
Non-Accrual Loans, Greater Than 90 Days		1,765,000
Non-Accrual Loans, Total Past Due		1,765,000
Non-Accrual Loans, Current	138,000
Greater Than 90 Days Past Due and Accruing		841,000
Total Non-Accrual and Past Due Loans	138,000	2,606,000
Non-Accrual and Past Due Loans [Member] \| Residential Portfolio Segment [Member] \| Substandard [Member]
Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items]
Non-Accrual Loans, Greater Than 90 Days	719,000	2,553,000
Non-Accrual Loans, Total Past Due	719,000	2,553,000
Non-Accrual Loans, Current		385,000
Total Non-Accrual and Past Due Loans	719,000	2,938,000
Non-Accrual and Past Due Loans [Member] \| Residential Portfolio Segment [Member]
Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items]
Non-Accrual Loans, Greater Than 90 Days	719,000	2,553,000
Non-Accrual Loans, Total Past Due	719,000	2,553,000
Non-Accrual Loans, Current		385,000
Total Non-Accrual and Past Due Loans	719,000	2,938,000
Non-Accrual and Past Due Loans [Member] \| Consumer Portfolio Segment [Member] \| Substandard [Member]
Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items]
Non-Accrual Loans, Greater Than 90 Days	7,000	2,000
Non-Accrual Loans, Total Past Due	7,000	2,000
Non-Accrual Loans, Current		31,000
Total Non-Accrual and Past Due Loans	7,000	33,000
Non-Accrual and Past Due Loans [Member] \| Consumer Portfolio Segment [Member]
Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items]
Non-Accrual Loans, Greater Than 90 Days	7,000	2,000
Non-Accrual Loans, Total Past Due	7,000	2,000
Non-Accrual Loans, Current		31,000
Total Non-Accrual and Past Due Loans	7,000	33,000
Non-Accrual and Past Due Loans [Member] \| Real Estate Construction [Member] \| Substandard [Member]
Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items]
Non-Accrual Loans, Greater Than 90 Days		260,000
Non-Accrual Loans, Total Past Due		260,000
Total Non-Accrual and Past Due Loans		260,000
Non-Accrual and Past Due Loans [Member] \| Real Estate Construction [Member]
Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items]
Non-Accrual Loans, Greater Than 90 Days		260,000
Non-Accrual Loans, Total Past Due		260,000
Total Non-Accrual and Past Due Loans		260,000
Non-Accrual and Past Due Loans [Member] \| Real Estate Construction to Permanent [Member] \| Substandard [Member]
Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items]
Non-Accrual Loans, Current		1,189,000
Total Non-Accrual and Past Due Loans		1,189,000
Non-Accrual and Past Due Loans [Member] \| Real Estate Construction to Permanent [Member]
Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items]
Non-Accrual Loans, Current		1,189,000
Total Non-Accrual and Past Due Loans		1,189,000
Non-Accrual and Past Due Loans [Member]
Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items]
Non-Accrual Loans, Greater Than 90 Days	728,000	4,582,000
Non-Accrual Loans, Total Past Due	728,000	4,582,000
Non-Accrual Loans, Current	138,000	7,755,000
Greater Than 90 Days Past Due and Accruing	279,000	866,000
Total Non-Accrual and Past Due Loans	$ 1,145,000	$ 13,203,000

Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans (USD $)

Dec. 31, 2014

Dec. 31, 2013

Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items]

Greater Than 90 Days Past Due and Accruing

$ 279,000

$ 866,000

Non-Accrual and Past Due Loans [Member] | Commercial Portfolio Segment [Member] | Pass [Member]

Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items]

Greater Than 90 Days Past Due and Accruing

279,000

25,000