Note 13 - Other Transactions (Detail)	1 Months Ended	12 Months Ended					12 Months Ended		12 Months Ended
	Jul. 31, 2011	Dec. 31, 2012 USD ($)	Dec. 31, 2012 CNY	Dec. 31, 2011 USD ($)	Oct. 31, 2012 USD ($)	Dec. 31, 2012 Subsequent Event [Member] USD ($)	Dec. 31, 2011 Canon Share Subscription Agreement [Member] USD ($)	Dec. 31, 2011 Diluted [Member]	Dec. 31, 2012 Land Use Right [Member] USD ($)
Finite-Lived Intangible Asset, Useful Life									50 years
Payments to Acquire Intangible Assets		$ 13,625,000							$ 12,000,000
Payments for Fees									1,670,000
Other Commitment					167,000,000	3,000,000			167,000,000
Revenue from Grants		11,800,000		287,000
Proceeds from Customers		1,900,000	12,000,000
Stock Issued During Period, Shares, New Issues (in Shares)	300,000						6,172,801
Sale of Stock, Price Per Share (in Dollars per share)		$ 2.15		$ 2.15			$ 9.32
Proceeds from Issuance of Common Stock				$ 57,826,000			$ 57,500,000
Equity Method Investment, Ownership Percentage							53.30%	49.80%
Common Stock, Shares, Outstanding (in Shares)		11,590,067	11,590,067	11,590,067			11,590,067