Notes Payable (Details) $ in Thousands	1 Months Ended		12 Months Ended
	Dec. 31, 2014 USD ($)	Apr. 30, 2014 USD ($)	Dec. 31, 2015 USD ($) tranche	Dec. 31, 2014 USD ($)	Aug. 31, 2015 USD ($)
Notes Payable
Proceeds from the issuance of debt				$ 6,975
Current portion of notes payable			$ 2,128
Interest Expense			475	117
2016			2,128
2017			3,500
2018			1,750
Total maturities			$ 7,378
Credit facility
Notes Payable
Proceeds from the issuance of debt		$ 2,000
Accrued interest rate (as a percent)			5.50%
Number of tranches | tranche			4
Available			$ 12,000
Borrowed			$ 7,000
Extension period			3 months
Current portion of notes payable			$ 1,800
Interest Expense			461	$ 117
Accrued interest			$ 39
Credit facility | Prime rate
Notes Payable
Variable interest rate			prime
Variable rate basis (as a percent)			2.25%
Term Loan Tranche A
Notes Payable
Available			$ 2,000
Borrowed			$ 2,000
Term Loan Tranche B
Notes Payable
Accrued interest rate (as a percent)			6.50%
Available			$ 5,000
Borrowed			$ 5,000
Proceeds from line of credit	$ 5,000
Monthly payments (as a percent)			4.166%
Term Loan Tranche B | Prime rate
Notes Payable
Variable interest rate			prime
Variable rate basis (as a percent)			3.25%
Term Loan Tranche C
Notes Payable
Available			$ 2,500
Term Loan Tranche D
Notes Payable
Available			2,500
Vendor Debt
Notes Payable
Balance of outstanding loan			$ 378		$ 584