Discontinued Operations - Additional Information (Details)		3 Months Ended
	Sep. 01, 2016 USD ($) option	Mar. 31, 2017 USD ($)	Mar. 31, 2016 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Repayments of lines of credit		$ 26,426,000	$ 33,878,000
Revenues		27,978,000	34,206,000
Cost of revenues		11,199,000	9,719,000
Supply agreement [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Contracts revenue		4,500,000
Cost of sales on contract revenues		$ 3,800,000
International
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues			5,000,000
Cost of revenues			4,000,000
Deerfield facility agreement and amended credit facility | Line of credit
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Repayments of lines of credit	$ 66,000,000
Globus facility agreement
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Maximum borrowing capacity	$ 30,000,000
Globus facility agreement | Line of credit
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Line of credit, expiration period	5 years
Discontinued operations, disposed of by sale | International operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Noncompete agreement term	2 years
Consideration received	$ 80,000,000
Supply commitment term	3 years
Supply agreement, number of annual options to extend | option	2
Supply obligation credit	$ 1,927,000
Supply obligation credit term	6 months
Interest expense, debt excluding amortization			2,356,000
Discontinued operations, disposed of by sale | International operations | Maximum
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Supply obligation credit	$ 1,900,000
Discontinued operations, disposed of by sale | International operations | Deerfield facility agreement and amended credit facility
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Interest expense, debt excluding amortization			$ 2,400,000