Income Tax Provision (Details) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Income Tax Provision [Abstract]
Income tax expense	$ 1,475,000	$ 856,000	$ 8,049,000	$ 1,474,000
Effective tax rate			54.00%	10.00%	16.00%
Domestic pre-tax income			(13,000,000)	(14,000,000)
Foreign pre-tax income			28,000,000	29,000,000
Tax holidays			2,000,000	4,000,000
Tax holidays basic EPS			$ 0.04	$ 0.08
Tax holidays diluted EPS			$ 0.04	$ 0.08
Unrecognized tax benefits	28,000,000		28,000,000
Estimated Annual Income Tax Rate Continuing Operations			20.00%
IncomeTaxExaminationLineItems
Income Tax Examination, Additional Tax from Examination			$ 5,000,000
InternalRevenueServiceIRSMember
IncomeTaxExaminationLineItems
Income Tax Examination, Description			During the second quarter of 2013, the Internal Revenue Service (“IRS”) commenced an examination of the Company’s U.S. federal income tax return for the 2010 tax year. The examination is ongoing, and the IRS has not proposed adjustments to any tax positions.
ForeignCountryMember
IncomeTaxExaminationLineItems
Income Tax Examination, Description			During 2012, the China government began an audit of the Company’s High and New Technology Enterprise (“HNTE”) status for its largest Chinese subsidiary for 2009-2011 as part of an overall evaluation of the reduced tax rates provided to many high tech companies. This subsidiary has a reduced tax rate of 15%. In April 2013, the Company was notified by the China government that they had completed their tax audit and had concluded that the Company owed additional tax related to tax year 2011 in the amount of $5 million. This subsidiary has been approved for its HNTE status for the tax years 2012-2014.