Balance Sheet Details (Tables)

12 Months Ended

Dec. 31, 2015

Balance Sheet Details [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories

Inventories are comprised of the following:

	December 31,
	2015		2014
Materials	$	39,022	$	29,092
Work-in-process	18,918		20,424
Finished goods	13,550		13,828
Total inventories	$	71,490	$	63,344

Property, Plant and Equipment [Table Text Block]

Property, Plant and Equipment

Property, plant and equipment, net is comprised of the following:

	December 31,
	2015			2014
Land and building	$	5,024		$	5,024
Machinery and equipment	21,683			20,277
Furniture and fixtures	3,414			3,387
Computer equipment	5,304			5,819
Leasehold improvements	7,884			7,774
	43,309			42,281
Accumulated depreciation	(30,963		)	(29,343		)
Total property, plant and equipment, net	$	12,346		$	12,938

Other Current liabilities [Table Text Block]

Other current liabilities

Other current liabilities is comprised of the following:

	December 31,
	2015		2014
Litigation accrual	$	3,252	$	3,252
Contingent consideration - acquisitions	1,407		1,267
Other	7,756		5,624
Total other current liabilities	$	12,415	$	10,143

Other Non-current liabilities [Table Text Block]

Other non-current liabilities

Other non-current liabilities is comprised of the following:

	December 31,
	2015		2014
Unrecognized tax benefits (including interest)	$	3,152	$	3,178
Contingent consideration - acquisitions	2,296		3,797
Deferred revenue	1,206		931
Other	2,900		1,695
Total non-current liabilities	$	9,554	$	9,601