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Note 3 - Loans and Allowance for Loan Losses - Allowance Related to Troubled Debt Restructurings (Details) - USD ($) | Sep. 30, 2016 | Dec. 31, 2015
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Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |
Related allowance | $ 120,000 | $ 221,000
Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] |  |
Related allowance | 30,000 | 186,000
Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] |  |
Related allowance | 105,000 | 115,000
Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] |  |
Related allowance | 177,000 | 201,000
Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residentia lRental Loan [Member] |  |
Related allowance | 264,000 | 365,000
Commercial Portfolio Segment [Member] |  |
Related allowance | 696,000 | 1,088,000
Retail Portfolio Segment [Member] | Home Equity and Other [Member] |  |
Related allowance | 50,000 | 14,000
Retail Portfolio Segment [Member] | One to Four Family Mortgages [Member] |  |
Related allowance | 5,000 | 6,000
Retail Portfolio Segment [Member] |  |
Related allowance | 55,000 | 20,000
Related allowance | $ 751,000 | $ 1,108,000

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- Definition Amount of allowance for credit losses related to receivables which had been measured under a general allowance for credit losses methodology that are now identified as troubled debt restructurings. + References No definition available. + Details
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