Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Examination [Line Items]
Deferred Tax Assets, Tax Credit Carryforwards, Research	$ 6,647	$ 7,496
Document Period End Date	Dec. 31, 2015
Current Federal Tax Expense (Benefit)	$ 1,012	(124)	$ (1,790)
Current State and Local Tax Expense (Benefit)	439	198	(122)
Current Foreign Tax Expense (Benefit)	3,425	1,812	1,497
Current Income Tax Expense (Benefit)	4,876	1,886	(415)
Deferred Federal Income Tax Expense (Benefit)	3,881	(4,285)	(2,378)
Deferred State and Local Income Tax Expense (Benefit)	71	54	938
Deferred Foreign Income Tax Expense (Benefit)	28	294	(70)
Deferred Income Tax Expense (Benefit)	3,980	(3,937)	(1,510)
Income Tax Expense (Benefit)	8,856	(2,051)	(1,925)
Income (Loss) from Continuing Operations before Income Taxes, Domestic	10,596	(11,985)	(4,860)
Income (Loss) from Continuing Operations before Income Taxes, Foreign	16,216	5,294	6,393
Estimated tax reduction for RD			1,300
Income Tax Reconciliation, Income Tax Expense (Benefit), at Federal Statutory Income Tax Rate	9,384	(2,342)	537
Income Tax Reconciliation, State and Local Income Taxes	370	21	828
Income Tax Reconciliation, Foreign Income Tax Rate Differential	754	561	(1,514)
Income Tax Reconciliation, Deductions, Qualified Production Activities	(553)	0	0
Income Tax Reconciliation, Change in Deferred Tax Assets Valuation Allowance	(653)	535	(153)
Income Tax Reconciliation, Tax Credits, Research	(694)	(830)	(1,965)
Income Tax Reconciliation, Prior Year Income Taxes	(23)	(36)	401
Income Tax Reconciliation, Other Adjustments	$ 271	$ 40	$ (59)
Income Tax Reconciliation, Income Tax Expense (Benefit), at Federal Statutory Income Tax Rate	33.00%	31.00%	(126.00%)
Deferred Tax Assets, Valuation Allowance	$ (2,205)	$ (2,445)
Operating loss carryforward federal	903
Operating Loss Carryforward State	268
Operating loss carryforward foreign	1,067
Federal AMT Carryforward	130
federal RD credit carryforward	7,207
State RD Credit Carryforward	1,814
foreign RD credit carryforward	3,318
Undistributed Earnings of Foreign Subsidiaries	6,764
Unrecognixed tax benefit balance	5,236	5,292	$ 5,706	$ 9,566
Unrecognized Tax Benefits, Increases Resulting from Prior Period Tax Positions	136	150	533
Unrecognized Tax Benefits, Decreases Resulting from Prior Period Tax Positions	(755)	(892)	(4,992)
Unrecognized Tax Benefits, Increases Resulting from Current Period Tax Positions	563	328	599
Unrecognized Tax Benefits, Reductions Resulting from Lapse of Applicable Statute of Limitations	0	0	0
Unrecognized Tax Benefit adjustment to income tax expense	4,613	4,499
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	71	60	$ (768)
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	900	830
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Reserves	3,357	3,304
Deferred Tax Assets, Deferred Income	1,988	2,005
Deferred Tax Assets, Operating Loss Carryforwards, Domestic	1,302	1,928
Deferred Tax Assets, Operating Loss Carryforwards, Foreign	4,347	7,533
Deferred Tax Liabilities, Intangible Assets	11,614	12,943
Deferred Tax Assets transaction costs	260	296
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost	3,396	1,762
Deferred Tax Assets, Inventory	4,026	3,338
Deferred Tax Asset Depreciation	484	923
Deferred Tax Assets, Other	87	776
Deferred Tax Assets, Gross	37,508	42,304
Deferred Tax Assets, Net of Valuation Allowance	35,303	39,859
Deferred Tax Liabilities, Gross	(330)	(525)
Deferred Tax Assets, Net	$ 34,973	$ 39,334