Note 17 - Supplemental Disclosure for Statements of Cash Flows (Details Textual) - USD ($) |
1 Months Ended | 3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|---|
Jan. 31, 2017 |
Mar. 31, 2017 |
Jun. 30, 2016 |
Jun. 30, 2017 |
Jun. 30, 2016 |
|
| Interest Paid | $ 7,400,000 | $ 4,200,000 | |||
| Reclassification of Funds Invested | $ 200,000 | $ 200,000 | |||
| Stock Issued During Period, Shares, Employee Benefit Plan | 105,308 | ||||
| Issuance of Stock to Defined Contribution Plan for Employer Matching Contribution | $ 53,707 | ||||
| Series NN Warrants [Member] | UCSD [Member] | |||||
| Class of Warrant or Right, Number of Securities Called by Warrants or Rights | 1,000,000 | 1,000,000 | |||
| Class of Warrant or Right, Grants in Period, Estimated Fair Value | $ 334,000 | $ 334,000 | |||
| Capital Royalty Group, Term Loan [Member] | |||||
| Payments to Collection of Collateral on Claims of Default | $ 778,000 | 778,000 | |||
| Payments to Prepayment Premium on Claims of Default | $ 2,100,000 | $ 2,100,000 | |||
| X | ||||||||||
- Definition Represents the estimated fair value of warrants or rights granted during the period. No definition available.
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| X | ||||||||||
- Definition Value of stock issued to the defined contribution plan for employer matching contribution. No definition available.
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| X | ||||||||||
- Definition The collateral payment collected on claims of default. No definition available.
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| X | ||||||||||
- Definition The prepayment premium payment on claims of default. No definition available.
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| X | ||||||||||
- Definition Represents the reclassification of funds invested during the period. No definition available.
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| X | ||||||||||
- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of cash paid for interest. Includes, but is not limited to, payment to settle zero-coupon bond attributable to accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Number of shares issued during the period to an employee benefit plan, such as a defined contribution or defined benefit plan. No definition available.
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