Summary of Significant Policies (Details Narrative) - USD ($) $ in Thousands |
12 Months Ended | ||
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Dec. 31, 2018 |
Dec. 31, 2017 |
Jan. 02, 2018 |
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| Material capitalized mobilization costs | |||
| Excess of federal insured limit amount | 250 | ||
| Advertising costs | |||
| Union Agreements [Member] | |||
| Concentration risk, percentage | 21.00% | ||
| Agreement expiration term description | These agreements are renegotiated when their terms expire between 2020 and 2021. | ||
| Union Agreement [Member] | |||
| Concentration risk, percentage | 17.00% | ||
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- Definition Agreement expiration term description. No definition available.
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- Definition Material capitalized mobilization costs. No definition available.
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- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of cash deposited in financial institutions as of the balance sheet date that is insured by the Federal Deposit Insurance Corporation. No definition available.
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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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- Details
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