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Summary of Significant Accounting Policies (Details Textual)
3 Months Ended 12 Months Ended 3 Months Ended 12 Months Ended 3 Months Ended
Mar. 31, 2013
USD ($)
Customer
Mar. 31, 2012
USD ($)
Customer
Dec. 31, 2012
USD ($)
Customer
Mar. 31, 2012
Amazon [Member]
Mar. 31, 2013
KOBO Inc [Member]
Mar. 31, 2013
Sony Corporation [Member]
Mar. 31, 2012
Sony Corporation [Member]
Mar. 31, 2013
Barnes and Noble [Member]
Mar. 31, 2013
Netronix [Member]
Mar. 31, 2013
Minimum [Member]
Dec. 31, 2012
Minimum [Member]
Mar. 31, 2013
Maximum [Member]
Mar. 31, 2013
US [Member]
USD ($)
Mar. 31, 2013
Sweden [Member]
EUR (€)
Summary of Significant Accounting Policies (Textual)                            
Basic deposit coverage limits per owner and customer                         $ 250,000 € 100,000
Entity-Wide Revenue, Major Customer, Percentage       55.00% 44.00% 20.00% 16.00% 10.00% 21.00%          
Percentage of net revenues earned from major customers                     10.00%      
Days of reporting period stipulated in the contract                   30 days   45 days    
Excess of insurance limits 7,200,000                          
Impairment of long-lived assets 0                          
Gains or (losses) resulting from foreign currency transactions 37,000 62,000                        
Foreign currency translation gain (loss) 13,000 44,000                        
Accounts receivable due, Number of aggregate customers 12   15                      
Accounts receivable, Number of major customer 5   0                      
Revenue earned, Number of customers 9 10                        
Percentage of accounts receivable due by five major customers 72.00%                          
Advertising costs 124,000 197,000                        
Unrecognized tax benefits $ 0   $ 0                      
Weighted-average exchange rate for consolidated statements of operations (Swedish Krona to one U.S. Dollar) 6.43 6.75                        
Exchange rate for the consolidated balance sheets (Swedish Krona to one U.S. Dollar) 6.52   6.52                      
Weighted-average exchange rate for consolidated statements of operations (Japanese Yen to one U.S. Dollar) 92.19                          
Exchange rate for the consolidated balance sheets (Japanese Yen to one U.S. Dollar) 94.16