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Debt (Tables) | 9 Months Ended
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Sep. 30, 2018
Debt Disclosure [Abstract] |
Schedule of Line of Credit Facilities [Table Text Block] | The table below reflects the Company's total debt, including borrowings under its credit agreement and master loan agreement for equipment notes:
|  |  |  | Stated Interest |  | Payment |  | Term |  | Outstanding Balance as of September 30, |  |  | Outstanding Balance as of December 31,
(dollar amounts in thousands) |  | Inception Date |  | Rate (per annum) |  | Frequency |  | (years) |  | 2018 |  |  | 2017 |
Credit Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revolving loans |  | 6/30/2016 |  | Variable |  | Variable |  | 5 |  | $ | 64,380 |  |  | $ | 78,960 |
Equipment Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equipment Note 1 |  | 9/28/2018 |  | 4.16% |  | Semi-annual |  | 5 |  |  | 12,655 |  |  |  | — |
Equipment Note 2 |  | 9/28/2018 |  | 4.23% |  | Semi-annual |  | 7 |  |  | 12,279 |  |  |  | — |
|  |  |  |  |  |  |  |  |  |  | 24,934 |  |  |  | — |
Total Debt |  |  |  |  |  |  |  |  |  |  | 89,314 |  |  |  | 78,960 |
Less: Current Portion of long-term debt |  |  |  |  |  |  |  |  | (2,941 | ) |  |  | — |
Long-term debt |  |  |  |  |  |  |  |  |  | $ | 86,373 |  |  | $ | 78,960 |
Schedule Of Equipment Note Repayments [Table Text Block] | The following table sets forth our remaining principal payments for the Company’s outstanding Equipment Notes as of September 30, 2018:
|  | Future |
|  |  | Equipment Notes |
(In thousands) |  |  | Principal Payments |
Remainder of 2018 |  | $ | — |
2019 |  |  | 2,941 |
2020 |  |  | 3,066 |
2021 |  |  | 3,195 |
2022 |  |  | 3,329 |
2023 |  |  | 6,002 |
Thereafter |  |  | 6,401 |
Total future principal payments |  | $ | 24,934 |
Less: Current portion of equipment notes |  |  | (2,941 | )
Long-term principal obligations |  | $ | 21,993 |

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- Definition Tabular disclosure of short-term or long-term contractual arrangements with lenders, including letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(e),(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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