Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Assumptions used for Estimating Fair Value of Each Option Award on Date of Grant using Black-Scholes Valuation Model

	Years Ended December 31,
	2015			2014			2013
Expected volatility		26 – 30	%		27 – 35	%		30 – 37	%
Expected dividends		—			—			—
Expected life (in years)		4.1 – 6.3			3.1 – 7.0			3.6 – 6.3
Risk-free interest rate		1.3 – 1.9	%		1.1 – 2.0	%		0.5 – 1.7	%

Schedule of Option Activity

A summary of option activity for 2015 is presented below:

	Time Based			Performance Based			Total			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term		Aggregate Intrinsic Value
Outstanding at January 1, 2015		1,146,509			384,601			1,531,110		$	13.57		6.4	$	3,979,000
Options granted		281,474			—			281,474			12.11
Options cancelled		(34,498	)		(4,934	)		(39,432	)		19.78
Options exercised		—			—			—			—
Options forfeited and expired		(448,442	)		(143,737	)		(592,179	)		17.71
Outstanding at December 31, 2015		945,043			235,930			1,180,973			10.95		4.5	$	—
Vested and expected to vest at December 31, 2015		919,115			231,338			1,150,453			10.87		4.4	$	—
Exercisable at December 31, 2015		668,425			208,793			877,218			10.05		3.9	$	—

Schedule of Stock-Based Compensation Expense Recognized

Stock-based compensation expense for both time based and performance based awards was recognized in the consolidated statements of operations as follows:

	Years Ended December 31,
(in thousands)	2015		2014		2013
Cost of goods sold	$	192	$	135	$	41
Sales and marketing		254		154		93
General and administrative		1,330		621		429
Research and development		226		121		15
Total stock-based compensation expense	$	2,002	$	1,031	$	578

Summary of Restricted Stock Awards Activity

A summary of restricted stock awards activity for 2015 is presented below:

	Time Based			Weighted Average Grant Date Fair Value Per Share
Issued and unvested at January 1, 2015		—		$	—
Granted		1,368,700			5.97
Vested		—			—
Forfeited		(280,532	)		6.01
Issued and unvested at December 31, 2015		1,088,168		$	5.96