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BALANCE SHEET DETAILS (Details) (USD $)
 12 Months Ended 12 Months Ended
Dec. 31, 2010
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Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2012
ESA Cultural Investment (Hong Kong) limited
Inventories:        
Raw materials   $ 3,833,000 $ 9,334,000  
Work in process   2,574,000 1,721,000  
Finished goods   19,621,000 23,207,000  
Total Inventory   26,028,000 34,262,000  
Finished goods at customer sites   14,400,000 13,200,000  
Inventories held by manufacturing outsource partner   100,000 400,000  
Inventory write-down 14,600,000      
Number of international customer contracts 2      
Prepaids and other current assets        
Notes Receivable     48,000  
Prepaid-Tax   8,517,000 14,762,000  
Advance to Suppliers   3,064,000 1,494,000  
Deferred Taxes - Current   3,493,000 1,499,000  
Other Receivable   9,890,000 6,251,000  
Prepaid others   2,190,000 5,188,000  
Total Prepaids and other current assets   27,154,000 29,242,000  
Other receivables        
Proceeds from loan payments       4,000,000
Loan receivable       $ 5,600,000
Interest rate of debt securities (as a percent)       20.00%