Amount billed to customers under long-term contracts or programs but not paid. Excludes amounts due that have been withheld because of retainage provisions in a contract.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

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Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment.

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Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Summary of Significant Accounting Policies (Details)	3 Months Ended	12 Months Ended
Summary of Significant Accounting Policies (Details)	Jun. 30, 2015 reporting_unit	Dec. 31, 2017	Dec. 31, 2016 USD ($) reporting_unit	Mar. 11, 2016 USD ($)
Property, Plant and Equipment [Line Items]
Number of reporting units (reporting_unit) \| reporting_unit	2		2
Impairment of intangible assets			$ 0
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives		P10Y
Computer equipment
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives		P3Y
Software
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives		P3Y
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives		life of lease
PCT Allendale, LLC [Member]
Property, Plant and Equipment [Line Items]
Contract Receivable				$ 5,600,000