Long-Term Debt and Other Financing Arrangements (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015	Nov. 20, 2015	Oct. 15, 2015	Dec. 04, 2014	Oct. 22, 2013	Mar. 14, 2013
Convertible Notes Payable and Loans Payable
Total debt	$ 14,234	$ 15,832
Less current maturities	(9,853)	(3,048)
Long-term debt, less current portion	$ 4,381	12,784
Convertible Notes | Dominion Capital
Convertible Notes Payable and Loans Payable
Interest rate of debt (as a percent)	9.75%		9.75%
Total debt	$ 3,650	4,000
Unamortized debt discount, costs and fees of issuance	$ (425)	(1,016)
Convertible Notes | Stanley House
Convertible Notes Payable and Loans Payable
Interest rate of debt (as a percent)	2.00%			2.00%
Total debt	$ 4,656	5,502
Senior Secured Debt
Convertible Notes Payable and Loans Payable
Interest rate of debt (as a percent)	1.10%
Total debt	$ 2,602	2,984
Promissory Note
Convertible Notes Payable and Loans Payable
Interest rate of debt (as a percent)	2.63%						2.63%
Total debt	$ 2,750	3,003
Promissory Note | Lega Enterprises, LLC
Convertible Notes Payable and Loans Payable
Interest rate of debt (as a percent)	5.00%					5.00%
Total debt	$ 841	1,043
Other miscellaneous notes
Convertible Notes Payable and Loans Payable
Interest rate of debt (as a percent)	4.00%				4.00%
Total debt	$ 160	$ 316