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Note 18 - Fair Value and Interest Rate Risk (Details) - Financial Assets Measured at Fair Value on a Recurring Basis - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
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Note 18 - Fair Value and Interest Rate Risk (Details) - Financial Assets Measured at Fair Value on a Recurring Basis [Line Items] |  |
Available-for-sale securities | $ 29,377 | $ 33,682
Fair Value, Measurements, Recurring [Member] |  |
Note 18 - Fair Value and Interest Rate Risk (Details) - Financial Assets Measured at Fair Value on a Recurring Basis [Line Items] |  |
Available-for-sale securities | 29,377 | 33,682
US Government Agencies Debt Securities [Member] |  |
Note 18 - Fair Value and Interest Rate Risk (Details) - Financial Assets Measured at Fair Value on a Recurring Basis [Line Items] |  |
Available-for-sale securities | 4,954 | 7,409
US Government Agencies Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] |  |
Note 18 - Fair Value and Interest Rate Risk (Details) - Financial Assets Measured at Fair Value on a Recurring Basis [Line Items] |  |
Available-for-sale securities | 4,954 | 7,409
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] |  |
Note 18 - Fair Value and Interest Rate Risk (Details) - Financial Assets Measured at Fair Value on a Recurring Basis [Line Items] |  |
Available-for-sale securities | 13,413 | 17,337
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] | Fair Value, Measurements, Recurring [Member] |  |
Note 18 - Fair Value and Interest Rate Risk (Details) - Financial Assets Measured at Fair Value on a Recurring Basis [Line Items] |  |
Available-for-sale securities | 13,413 | 17,337
Corporate Debt Securities [Member] |  |
Note 18 - Fair Value and Interest Rate Risk (Details) - Financial Assets Measured at Fair Value on a Recurring Basis [Line Items] |  |
Available-for-sale securities | 9,010 | 8,936
Corporate Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] |  |
Note 18 - Fair Value and Interest Rate Risk (Details) - Financial Assets Measured at Fair Value on a Recurring Basis [Line Items] |  |
Available-for-sale securities | 9,010 | 8,936
Subordinated Notes [Member] |  |
Note 18 - Fair Value and Interest Rate Risk (Details) - Financial Assets Measured at Fair Value on a Recurring Basis [Line Items] |  |
Available-for-sale securities | 2,000 |
Subordinated Notes [Member] | Fair Value, Measurements, Recurring [Member] |  |
Note 18 - Fair Value and Interest Rate Risk (Details) - Financial Assets Measured at Fair Value on a Recurring Basis [Line Items] |  |
Available-for-sale securities | 2,000 |
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Note 18 - Fair Value and Interest Rate Risk (Details) - Financial Assets Measured at Fair Value on a Recurring Basis [Line Items] |  |
Available-for-sale securities | 29,377 | 33,682
Fair Value, Inputs, Level 2 [Member] | US Government Agencies Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] |  |
Note 18 - Fair Value and Interest Rate Risk (Details) - Financial Assets Measured at Fair Value on a Recurring Basis [Line Items] |  |
Available-for-sale securities | 4,954 | 7,409
Fair Value, Inputs, Level 2 [Member] | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] | Fair Value, Measurements, Recurring [Member] |  |
Note 18 - Fair Value and Interest Rate Risk (Details) - Financial Assets Measured at Fair Value on a Recurring Basis [Line Items] |  |
Available-for-sale securities | 13,413 | 17,337
Fair Value, Inputs, Level 2 [Member] | Corporate Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] |  |
Note 18 - Fair Value and Interest Rate Risk (Details) - Financial Assets Measured at Fair Value on a Recurring Basis [Line Items] |  |
Available-for-sale securities | 9,010 | $ 8,936
Fair Value, Inputs, Level 2 [Member] | Subordinated Notes [Member] | Fair Value, Measurements, Recurring [Member] |  |
Note 18 - Fair Value and Interest Rate Risk (Details) - Financial Assets Measured at Fair Value on a Recurring Basis [Line Items] |  |
Available-for-sale securities | $ 2,000 |

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- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=51813488&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49167202&loc=d3e26610-111562 + Details
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