Summary of Significant Accounting Policies (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2012 in	Dec. 31, 2011	Dec. 31, 2010
Summary of Significant Accounting Policies (Textual) [Abstract]
Impairment of investments	$ 0	$ 0
Depreciation and amortization expense associated with property and equipment	12,027,000	9,724,000	6,066,000
Reduced inventory and increased costs of goods sold	719,000
Based on these sales prices reduced inventory and increased cost of goods sold	1,500,000
The recycling of boules reduced inventory and increased cost of goods sold	927,000
Impairment losses on long lived assets	0	0	0
Deposit at a financial institution	6,900,000	2,800,000
Research and development costs	2,274,000	1,806,000	1,079,000
Income Tax Benefit Recognition Criteria Percentage Threshold	50.00%
Potential penalties related to income taxes	0	11,000	0
Interest or penalties related to income taxes accrued or recognized	0		0
Period of exemption from Malaysian income tax	10 years
Normal size of recycled boules from inventory	6
Revenue was recorded from Government contract	1,200,000
Total value of the contract	4,700,000
Period of contract	3 years
Certificates of Deposit [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted certificates of deposit	5,000	5,000
Employee Fund [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted certificates of deposit	2,600	1,700
Escrow Funds [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted certificates of deposit		50,000
Interest-bearing Deposits [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted certificates of deposit	$ 163,500	$ 132,200