Line Of Credit, Short Term Debt And Bank Acceptance Notes (Schedule Of Bank Acceptance Notes) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Short-term Debt [Line Items]
Bank acceptance notes payable	$ 26,124	$ 10,528
Taizhou Bank [Member]
Short-term Debt [Line Items]
Bank acceptance notes payable	5,064	2,451
China Merchant Bank [Member]
Short-term Debt [Line Items]
Bank acceptance notes payable	4,557	3,316
China Everbright Bank [Member]
Short-term Debt [Line Items]
Bank acceptance notes payable	2,172	4,761
Zhejiang Tailong Commercial Bank [Member]
Short-term Debt [Line Items]
Bank acceptance notes payable	1,313
Zhejiang Sanmen Yin Zuo Village Bank [Member]
Short-term Debt [Line Items]
Bank acceptance notes payable	1,266
Shanghai Pudong Development Bank [Member]
Short-term Debt [Line Items]
Bank acceptance notes payable	676
CITIC Bank [Member]
Short-term Debt [Line Items]
Bank acceptance notes payable	$ 11,076