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Debt (Tables) | 9 Months Ended
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Sep. 30, 2021
Debt [Abstract] |
Schedule of Annual Principal Maturities of Debt | The annual principal maturities of debt as of September 30, 2021 are as follows (in thousands):
​ | ​ | ​ | ​
2021 |  | $ | —
2022 | ​ |  | 5,333
2023 | ​ |  | 8,000
2024 | ​ |  | 6,667
​ | ​ |  | 20,000
Less: Unamortized debt costs and discounts | ​ |  | (516)
Less: current portion | ​ | ​ | (3,333)
Long-term debt | ​ | $ | 16,151

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- Definition Tabular disclosure of maturity and sinking fund requirement for long-term debt. + 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=123465755&loc=d3e1835-112601 + Details
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