Debt - Debt Covenant Compliance (Details) $ in Thousands	Sep. 30, 2017 USD ($)
Line of Credit | 2016 Credit Agreement
Debt Instrument [Line Items]
Minimum Aggregate Revenue (LTM) as of the of Six months ending September 30, 2017	$ 26,000
Minimum Aggregate Revenue (LTM) as of the of Nine months ending December 31, 2017	53,000
Minimum Aggregate Revenue (LTM) as of the of Twelve months ending March 31, 2018	69,000
Minimum Aggregate Revenue (LTM) as of the of Twelve months ending June 30, 2018	70,000
Minimum Aggregate Revenue (LTM) as of the of Twelve months ending September 30, 2018	71,000
Minimum Aggregate Revenue (LTM) as of the of Twelve months ending December 31, 2018	74,000
Minimum Aggregate Revenue (LTM) as of the of Twelve months ending each fiscal quarter thereafter	75,000
Line of Credit | A&R Credit Agreement
Debt Instrument [Line Items]
Minimum Aggregate Revenue (LTM) as of the of Six months ending September 30, 2017	26,000
Minimum Aggregate Revenue (LTM) as of the of Nine months ending December 31, 2017	53,000
Minimum Aggregate Revenue (LTM) as of the of Twelve months ending March 31, 2018	69,000
Minimum Aggregate Revenue (LTM) as of the of Twelve months ending June 30, 2018	70,000
Minimum Aggregate Revenue (LTM) as of the of Twelve months ending September 30, 2018	71,000
Minimum Aggregate Revenue (LTM) as of the of Twelve months ending December 31, 2018	74,000
Minimum Aggregate Revenue (LTM) as of the of Twelve months ending each fiscal quarter thereafter	75,000
Term Loans | 2016 Credit Agreement
Debt Instrument [Line Items]
Minimum Adjusted EBITDA as of the end of Twelve months ending December 31, 2017	3,000
Minimum Adjusted EBITDA as of the end of Twelve months ending March 31, 2018	5,000
Minimum Adjusted EBITDA as of the end of Twelve months ending June 30, 2018	5,200
Minimum Adjusted EBITDA as of the end of Twelve months ending September 30, 2018	6,000
Minimum Adjusted EBITDA as of the end of Twelve months ending December 31, 2018	8,000
Minimum Adjusted EBITDA as of the end of Twelve months ending each fiscal quarter thereafter	9,000
Minimum Consolidated Unencumbered Liquid Assets as of September 30, 2017	750
Minimum Consolidated Unencumbered Liquid Assets as of the end of each fiscal year thereafter	1,000
Term Loans | A&R Credit Agreement
Debt Instrument [Line Items]
Minimum Adjusted EBITDA as of the end of Twelve months ending December 31, 2017	3,000
Minimum Adjusted EBITDA as of the end of Twelve months ending March 31, 2018	5,000
Minimum Adjusted EBITDA as of the end of Twelve months ending June 30, 2018	5,200
Minimum Adjusted EBITDA as of the end of Twelve months ending September 30, 2018	6,000
Minimum Adjusted EBITDA as of the end of Twelve months ending December 31, 2018	8,000
Minimum Adjusted EBITDA as of the end of Twelve months ending each fiscal quarter thereafter	9,000
Minimum Consolidated Unencumbered Liquid Assets as of September 30, 2017	750
Minimum Consolidated Unencumbered Liquid Assets as of the end of each fiscal year thereafter	$ 1,000