Organization and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2013

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Property, Plant and Equipment [Table Text Block]

Depreciation and amortization of property and equipment are provided over their estimated useful lives, using the straight-line method, as follows:

Computer equipment and related software	3 - 5 years
Leasehold and building improvements	Shorter of the lease term or the estimated useful life
Furniture and fixtures	5 years
Equipment	3 - 5 years

Property and equipment consist of the following (in thousands):

	December 31, 2013			December 31, 2012
Equipment	$	40,180		$	32,528
Furniture and fixtures	5,260			5,126
Leasehold improvements	7,394			6,992
Purchased software	20,199			19,870
Construction in process	2,649			2,693
	75,682			67,209
Accumulated depreciation and amortization	(40,428		)	(33,102		)
Property and equipment, net	$	35,254		$	34,107