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Note 8 - Lease Obligations - Future Minimum Lease Payments (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
2021, Operating | [1] | $ 13,837 |
2021, Finance | [1] | 6,736 |
2022, Operating |  | 15,613 |
2022, Finance |  | 7,678 |
2023, Operating |  | 6,852 |
2023, Finance |  | 1,607 |
2024, Operating |  | 49 |
2024, Finance |  | 0 |
2025, Operating |  | 9 |
2025, Finance |  | 0 |
Thereafter, Operating |  | 0 |
Thereafter, Finance |  | 0 |
Total minimum lease payments, Operating |  | 36,360 |
Total minimum lease payments, Finance |  | 16,021 |
Less: amount representing interest, Operating |  | (1,984) |
Less: amount representing interest, Finance |  | (211) |
Present value of minimum lease payments, Operating |  | 34,376 |
Present value of minimum lease payments, Finance |  | 15,810 |
Less: current portion, Operating |  | (16,844) | $ (16,989)
Less: current portion, Finance |  | (6,147) | (5,687)
Lease obligations, long-term, Operating |  | 17,532 |
Lease obligations, long-term, Finance |  | $ 9,663 | $ 10,756
[1] | Excludes the three months ended March 31, 2021.

X
- Definition Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid after fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References No definition available. + Details
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- Definition Amount of lessee's undiscounted obligation for lease payment for operating lease due after fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References No definition available. + Details
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease including operating lease not yet commenced, classified as noncurrent. + References No definition available. + Details
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- Definition Present value of lessee's discounted obligation for lease payments from finance lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details
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- Definition Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980 + Details
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