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Debt (Details) | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Nov. 30, 2017 item | Dec. 31, 2017 USD ($) item | Dec. 31, 2016 USD ($)
Debt Instruments |  |  |
Number of letters of credit issued | item |  | 3 |
Number of notes payable paid off | item | 1 |  |
Capital lease obligations |  | $ 7,865,000 | $ 419,000
Letter Of Credit |  |  |
Debt Instruments |  |  |
Funds borrowed under Line of Credit |  | 0 |
Credit Agreement |  |  |
Debt Instruments |  |  |
Borrowing, repaying and re-borrowing capacity |  | $ 20,000,000 |
Percentage of maximum borrowing capacity on eligible accounts receivable |  | 80.00% |
Percentage of maximum borrowing capacity on eligible core equipment |  | 50.00% |
Maximum borrowing capacity on core equipment |  | $ 12,500,000 |
Interest rate (as a percent) |  | 4.50% |
Minimum tangible net worth |  | $ 125,000,000 |
Credit Agreement | Term Note |  |  |
Debt Instruments |  |  |
Number of outstanding notes payable | item |  | 0 |
Credit Agreement | Prime rate |  |  |
Debt Instruments |  |  |
Variable interest rate basis |  | prime rate |
Credit Agreement | Minimum |  |  |
Debt Instruments |  |  |
Ratio of current assets to current liabilities |  | 1.50 |
Credit Agreement | Minimum | Prime rate |  |  |
Debt Instruments |  |  |
Interest rate (as a percent) |  | 2.50% |
Credit Agreement | Maximum |  |  |
Debt Instruments |  |  |
Debt to tangible net worth ratio |  | 1.00 |
Insurance Obligations |  |  |
Debt Instruments |  |  |
Letters of credit issued |  | $ 1,767,000 |
Workers' Compensation Insurance |  |  |
Debt Instruments |  |  |
Letters of credit issued |  | 583,000 |
Performance Obligations |  |  |
Debt Instruments |  |  |
Letters of credit issued |  | $ 75,000 |

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- Definition Represents the ratio of debt to tangible net worth ratio to be maintained during the period. + References No definition available. + Details
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- Definition Represents the maximum borrowing capacity of the second feature on the Line Of Credit. + References No definition available. + Details
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- Definition Represents the number of debt instruments paid in full during the period. + References No definition available. + Details
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- Definition Represents the number of letters of credit issued and outstanding. + References No definition available. + Details
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- Definition Represents the maximum percentage allowed to be borrowed against core equipment. + References No definition available. + Details
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- Definition Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84164817&loc=d3e45280-112737 Reference 2: http://www.xbrl.org/2003/role/presentationRef -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=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -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=6879938&loc=d3e572229-122910 + Details
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- Definition The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR. + References No definition available. + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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=6877327&loc=d3e13212-122682 + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a 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. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -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=6876686&loc=d3e534808-122878 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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 + Details
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- Definition The lowest amount of net worth (total assets minus total liabilities) required by secondary market investors or state-imposed regulatory mandates. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c)(a) -URI http://asc.fasb.org/extlink&oid=6490092&loc=d3e47080-110998 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6490092&loc=d3e47304-110998 + Details
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