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Note 12 - Stockholders' Equity (Details Textual) - USD ($) |  | 12 Months Ended |
--- | --- | --- | ---
Apr. 22, 2015 | Dec. 31, 2015 | Dec. 31, 2014
Special Stock Shares Outstanding |  | $ 0 |
Common Stock, Shares Authorized |  | 20,000,000 | 20,000,000
Common Stock, Par or Stated Value Per Share |  | $ 0.01 | $ 0.01
Special Stock Shares Authorized |  | 2,000,000 |
Stock Repurchase Program, Authorized Amount | $ 5,000,000 |  |
Stock Repurchased and Retired During Period, Shares | 230,729 | 230,729 |
Stock Repurchased and Retired During Period, Price Per Share | $ 3 |  |
Stock Repurchased and Retired During Period, Value | $ 692,000 |  |

X
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- Definition The amount of special shares of stock outstanding. + References No definition available. + Details
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- Definition Face amount or stated value per share of common stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
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- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
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- Definition Amount of stock repurchase plan authorized. + References No definition available. + Details
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