Stock-Based Plans and Stock-Based Compensation - Stock-Based Plans, Stock-Based Compensation and Stock Grants (Details) $ / shares in Units, $ in Thousands	1 Months Ended	12 Months Ended
	May. 31, 2015 shares	Dec. 31, 2015 USD ($) nonemployee_director $ / shares shares	Dec. 31, 2014 USD ($) $ / shares	Dec. 31, 2013 USD ($) $ / shares	May. 31, 2014 shares
Options, Additional Disclosures [Abstract]
Weighted average per share fair value of stock options granted (in dollars per share) | $ / shares		$ 7.68	$ 6.89	$ 4.90
Intrinsic value of stock options exercised		$ 92	$ 932	$ 554
Intrinsic value of fully-vested stock awards granted		42	288	1,039
Stock-Based Compensation Expense [Abstract]
Total Stock-based compensation expense		1,157	$ 784	$ 549
Unrecognized stock-based compensation expense		$ 2,000
Weighted average remaining vesting period		2 years 292 days
Fair Value Assumptions and Methodology [Abstract]
Risk-free interest rate		1.87%	2.11%	1.61%
Dividend yield		0.00%	0.00%	0.00%
Expected life		6 years 8 months 19 days	7 years 4 months 2 days	7 years 10 months 6 days
Volatility		61.50%	60.20%	58.91%
Selling, general and administrative expense
Stock-Based Compensation Expense [Abstract]
Total Stock-based compensation expense		$ 1,074	$ 666	$ 464
Cost of sales
Stock-Based Compensation Expense [Abstract]
Total Stock-based compensation expense		83	118	85
Stock grants
Fair Value Assumptions and Methodology [Abstract]
Fair value of stock granted		$ 35	$ 30	$ 25
Number of shares authorized per non-employee director (in shares) | shares		3,238
Number of non-employee directors | nonemployee_director		7
Stock awards granted (in shares) | shares	10,782	22,666
2014 Plan
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Number of shares authorized (in shares) | shares					1,000,000
Number of shares available for grant (in shares) | shares		763,121