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Note 10 - Shareholders' Equity (Details Textual) - USD ($) $ / shares in Units, $ in Thousands |  |  |  | 1 Months Ended | 3 Months Ended | 15 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jan. 01, 2016 | Oct. 27, 2014 | Aug. 01, 2013 | Oct. 31, 2015 | Aug. 31, 2015 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2015 | Sep. 30, 2015 | Dec. 31, 2012 | Oct. 21, 2010
Series A Convertible Preferred Stock [Member] | Increased Divided Percentage After Two Years [Member] |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Dividend Rate, Percentage |  |  |  |  |  |  |  | 12.00% |  |  |
Series A Convertible Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Convertible, Threshold Consecutive Trading Days |  | 10 days |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues |  | 200,000 |  |  |  |  |  |  |  |  |
Share Price |  | $ 10 |  |  |  |  |  |  |  |  |
Gross Proceeds From Sale of Stock |  | $ 2,000 |  |  |  |  |  |  |  |  |
Proceeds from Issuance of Private Placement |  | $ 1,800 |  |  |  |  |  |  |  |  |
Preferred Stock Conversion Price |  | $ 0.65 |  |  |  |  |  |  |  |  |
Minimum Common Stock Price Allowing Company to Force Convert Preferred Stock |  | $ 1.30 |  |  |  |  |  |  |  |  |
Preferred Stock, Dividend Rate, Percentage |  |  |  |  |  |  |  | 6.00% |  |  |
Convertible Preferred Stock [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |
Preferred Stock Dividends, Shares | 3,221 |  |  |  |  |  |  |  |  |  |
Convertible Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Preferred Stock Dividends, Shares |  |  |  | 3,171 |  | 11,393 |  |  |  |  |
Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues |  |  |  | 680,000 |  | 680,000 |  |  |  |  |
Share Price |  |  |  | $ 1 |  |  |  |  |  |  |
Gross Proceeds From Sale of Stock |  |  |  | $ 680 |  |  |  |  |  |  |
Proceeds from Issuance of Common Stock |  |  |  | $ 669 |  |  |  |  |  |  |
Elements Local [Member] |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares |  |  | 105,288 |  |  |  |  |  |  |  |
Business Acquisition Contingent Consideration Maximum Shares Issuable |  |  | 67,693 |  |  |  |  |  |  |  |
Common Stock, Shares Earned for Achievement of Revenue Targets |  |  |  |  |  |  |  |  |  | 50,769 |
Amended and Restated Stock Incentive Plan [Member] | Employee Stock Option [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period |  |  |  |  | 10 years |  |  |  |  |  |
Amended and Restated Stock Incentive Plan [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized |  |  |  |  | 1,250,000 |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number |  |  |  |  |  | 831,197 |  | 831,197 |  |  |
Common Stock, Capital Shares Reserved for Future Issuance |  |  |  |  |  | 418,803 |  | 418,803 |  |  |
Employee Stock Option [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number |  |  |  |  |  | 831,197 |  | 831,197 | 875,977 |  |
Exercisable at $7.50 Per Share [Member] | Placement Agent Warrants [Member] |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights |  |  |  |  |  | 43,479 |  | 43,479 |  |  |
Exercisable at $6.25 per Share [Member] | Placement Agent Warrants [Member] |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights |  |  |  |  |  | 138,000 |  | 138,000 |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights |  |  |  |  |  | $ 6.25 |  | $ 6.25 |  |  |
Exercisable at $6.50 per Share [Member] | Placement Agent Warrants [Member] |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights |  |  |  |  |  | 46,155 |  | 46,155 |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights |  |  |  |  |  | $ 6.50 |  | $ 6.50 |  |  |
Exercisable at $5.25 [Member] | Placement Agent Warrants [Member] |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights |  |  |  |  |  | 64,000 |  | 64,000 |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights |  |  |  |  |  | $ 5.25 |  | $ 5.25 |  |  |
Exercisable at $3.25 [Member] | Placement Agent Warrants [Member] |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights |  |  |  |  |  | 61,539 |  | 61,539 |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights |  |  |  |  |  | $ 3.25 |  | $ 3.25 |  |  |
Exercisable at $7.00 per Share [Member] | Placement Agent Warrants [Member] |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights |  |  |  |  |  | $ 7 |  | $ 7 |  |  |
Exercisable at $4.00 [Member] | Investors [Member] |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights |  |  |  |  |  | 180,000 |  | 180,000 |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights |  |  |  |  |  | $ 4 |  | $ 4 |  |  |
Exercisable at $1.75 [Member] | Investors [Member] |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights |  |  |  |  |  | 160,000 |  | 160,000 |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights |  |  |  |  |  | $ 1.75 |  | $ 1.75 |  |  |
Issued to Non-Employee Consultant [Member] |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights |  |  |  |  |  |  |  |  |  |  | 16
Proceeds from Issuance of Common Stock |  |  |  |  |  | $ 669 |  |  |  |  |

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