Income Taxes (Details Textual) (USD $)	1 Months Ended	12 Months Ended
	Jun. 30, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Operating Loss Carryforwards [Line Items]
Net operation loss deduction		$ 100,000
State net operating loss-net of tax		1,524,000	984,000
Income Taxes (Textual) [Abstract]
Tax Benefit (Expense)	3,300,000
Investment tax credits and research and development credits scheduled to expire		2017
Penalties related to income taxes		0	11,000	0
Unrecognized potential tax benefits		1,000,000
Decreased foreign taxes		1,300,000	535,000	54,000
Net income per share		$ 0.06	$ 0.02	$ 0.00
Cumulative undistributed earnings of foreign subsidiaries		8,100,000
Investment Credit [Member]
Operating Loss Carryforwards [Line Items]
Tax credit carryforward amount		83,400
Research [Member]
Operating Loss Carryforwards [Line Items]
Tax credit carryforward amount		53,900
Malaysia [Member]
Operating Loss Carryforwards [Line Items]
Number of period for which income tax is exempted		10 years
Domestic Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Net operation loss deduction		37,600,000
Operating loss carry forwards expiration year		2026
Stock option exercises for federal purposes		21,600,000
State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Net operation loss deduction		58,400,000
Operating loss carry forwards expiration year		2018
State net operating loss-net of tax		$ 26,000,000