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Note 6 - Long-term Debt and Lease Obligation (Tables) | 12 Months Ended
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Dec. 31, 2018
Notes Tables |
Schedule of Debt [Table Text Block] |
|  | December 31, |
|  | 201 8 |  |  | 201 7 |
Senior secured debt due May 25, 2021 |  | $ | 67,401 |  |  | $ | 62,701 |
Interest accrues at 8% per annum |  |  |  |  |  |  |  |
Convertible note instrument due March 5, 2018 |  |  | - |  |  |  | 1,371 |
Interest accrues at 7% per annum |  |  |  |  |  |  |  |
Convertible note instrument due March 5, 2020 |  |  | 73,158 |  |  |  | 69,488 |
Interest accrues at 7% per annum |  |  |  |  |  |  |  |
Lease Obligation |  |  | 14,831 |  |  |  | 13,720 |
Other loans |  |  | 104 |  |  |  | 160 |
Debt discount and debt issuance costs, net of accumulated accretion |  |  | (4,778 | ) |  |  | (8,988 | )
|  |  | 150,716 |  |  |  | 138,452 |
Less current portion |  |  | 59 |  |  |  | 1,408 |
|  | $ | 150,657 |  |  | $ | 137,044 |
Schedule of Maturities of Long-term Debt [Table Text Block] |
Year Ending December 31 |  | ($ in thousands) |
2019 |  | $ | 59 |
2020 |  |  | 73,189 |
2021 |  |  | 67,416 |
2022 |  |  | - |
2023+ |  |  | 14,830 |
Total |  | $ | 155,494 |

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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
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- Definition Tabular disclosure of the combined aggregate amount of maturities and sinking fund requirements for all long-term borrowings for each of the five years following the date of the latest balance sheet date presented. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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