Commitments and Contingencies (Details)	1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
	Feb. 28, 2014 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) item	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
Commitments and Contingencies
Number of renewal provisions | item				2
Term of additional lease renewals				3 years
Leasehold improvements		$ 369,000		$ 369,000
Rent expense		231,000	$ 230,000	708,000	$ 691,000
Annual minimum lease payments under non-cancelable future operating lease commitments
2015 (remainder of fiscal year)		283,000		283,000
2016		1,060,000		1,060,000
Total minimum payments		1,343,000		1,343,000
Purchase Obligations
Noncancellable purchase obligations to suppliers		$ 3,158,000		$ 3,158,000		$ 1,334,000
Legal Proceedings
Transaction fees and reimbursement of a former financial advisor's out of pocket expenses	$ 35,000					$ 650,000
Number of installments to pay transaction fees and reimbursement of a former financial advisor's out of pocket expenses						1 year