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Note 12 - Mezzanine Equity (Details Textual) - $ / shares | Mar. 30, 2020 | Jun. 30, 2019 | Mar. 29, 2019 | Dec. 31, 2018
--- | --- | --- | --- | ---
Series E Preferred Stock [Member] |  |  |  |
Preferred Stock, Shares Outstanding, Ending Balance |  | 28,158 |  | 0
Family Trading Inc [Member] | Conversion of Series E Preferred Stock To Common Stock [Member] |  |  |  |
Convertible Preferred Stock, Shares Issued upon Conversion |  | 4,177,745 |  |
Family Trading Inc [Member] | Series E Preferred Stock [Member] |  |  |  |
Stock Issued During Period, Shares, New Issues |  |  | 27,129 |
Shares Issued, Price Per Share |  |  | $ 1,000 |
Convertible Preferred Stock, Numerator Price |  |  | 1 |
Convertible Preferred Stock, Conversion Price |  | $ 6.74 | $ 20 |
Convertible Preferred Stock, Conversion Price, Percentage of VWAP |  |  | 80.00% |
Preferred Stock, Number of Common Shares Voting Rights |  |  | 1,000 |
Preferred Stock, Liquidation Preference Per Share |  |  | $ 1,000 |
Preferred Stock Redemption Premium, Percent of Liquidation Amount Redeemed |  |  | 15.00% |
Preferred Stock, Dividend Rate, Percentage |  |  | 15.00% |
Preferred Stock, Accrued Dividend, Interest Rate |  |  | 15.00% |
Preferred Stock Dividends, Shares |  | 1,029 |  |
Preferred Stock, Shares Outstanding, Ending Balance |  | 28,158 |  |
Family Trading Inc [Member] | Series E Preferred Stock [Member] | Minimum [Member] |  |  |  |
Convertible Preferred Stock, Conversion Price |  |  | $ 0.60 |
Yorkville [Member] | Series B Preferred Stock [Member] | Forecast [Member] |  |  |  |
Preferred Stock Redemption Premium, Percent of Liquidation Amount Redeemed | 20.00% |  |  |

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- Definition The percentage of the lowest daily VWAP of the Company's common stock over a certain amount of consecutive trading days expiring on the trading day immediately prior to the date of delivery of a conversion notice, which is used to determine the conversion price of convertible preferred stock. + References No definition available. + Details
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- Definition The excess of the (1) fair value of consideration transferred to the holders of a security in excess of (2) the carrying amount of the security reported on the registrant's balance sheet, which will be deducted from net earnings to derive net earnings available to common shareholders represented as a percentage of the liquidation amount being redeemed. + References No definition available. + Details
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