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v3.21.1

Note 6 - Long-term Debt - Carrying Amount of the Company's Outstanding Debt (Details) (Parentheticals) | Dec. 31, 2020 | Dec. 31, 2019
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Senior Secured Debt, Due March 25, 2021 [Member] |  |
Debt instrument, interest rate, stated percentage | 8.00% | 8.00%
Convertible Senior Notes Due March 5, 2020 [Member] |  |
Debt instrument, interest rate, stated percentage | 7.00% | 7.00%

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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Details
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- Details
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