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Summary of Significant Accounting Policies - Additional Disclosures (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Sep. 30, 2014
Summary of Significant Accounting Policies
Number of shares repurchased	29,559	0
Cost of shares repurchased	$ 587,000
Decrease in total current assets		$ 1,100,000
Decrease in total current liabilities		1,100,000
Research and Development
Research and development expense	$ 1,400,000	1,200,000	$ 1,200,000
Accounting Standards Update 2015-17 | Adjustments for New Accounting Principle, Early Adoption
Assumptions used to determine the intrinsic fair market value of options using Black Scholes option pricing model
Decrease in current deferred taxes (asset)		1,100,000
Decrease in current deferred taxes (liability)		1,100,000
Minimum
Intangible Assets
Estimated useful lives of intangible assets with a definite life	5 years
Maximum
Intangible Assets
Estimated useful lives of intangible assets with a definite life	14 years
Options
Share-Based Compensation
Share-based compensation expense	$ 282,000	$ 354,000	$ 214,000
Assumptions used to determine the intrinsic fair market value of options using Black Scholes option pricing model
Expected term	5 years
Weighted-average grant-date fair value	$ 6.04	$ 7.24	$ 5.84
Total income tax benefit recognized	$ 312,000	$ 320,000	$ 280,000
Options | Minimum
Assumptions used to determine the intrinsic fair market value of options using Black Scholes option pricing model
Expected volatility (as a percent)	31.50%	32.80%	34.00%
Risk free interest rate (as a percent)	1.00%	0.70%	0.40%
Exercise price (in dollars per share)	$ 19.97	$ 22.55	$ 18.85
Expected term		3 years 9 months 18 days	3 years 3 months 18 days
Options | Maximum
Assumptions used to determine the intrinsic fair market value of options using Black Scholes option pricing model
Expected volatility (as a percent)	32.30%	37.90%	50.00%
Risk free interest rate (as a percent)	1.20%	0.90%	0.70%
Exercise price (in dollars per share)	$ 22.36	$ 25.48	$ 21.67
Expected term		5 years	5 years
Selling, general, and administrative expenses
Share-Based Compensation
Share-based compensation expense	$ 1,069,000	$ 1,119,000	$ 924,000
Component Products
Goodwill
Amount of excess of fair value over carrying value of the reporting unit				$ 69,000,000
Percentage of excess of fair value over carrying value of the reporting unit				74.00%

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