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Note 6 - Long-term Debt - Carrying Amount of the Company's Outstanding Debt (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Other loans | $ 152 | $ 45
Debt discount and debt issuance costs, net of accumulated accretion | (366) | (304)
Total outstanding long-term debt | 78,647 | 137,596
Less current portion | 51 | 31
Total outstanding debt | 78,596 | 137,565
Senior Secured Debt, Due March 25, 2021 [Member] |  |
Senior secured debt due May 25, 2021 Interest accrues at 8% per annum | 78,861 | 72,341
Convertible Senior Notes Due March 5, 2020 [Member] |  |
Interest accrues at 7% per annum | $ 0 | $ 65,514

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- Definition Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 2: 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)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
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