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Summary of Significant Accounting Policies (Details Textual) | 0 Months Ended | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |
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Oct. 16, 2013 USD ($) | Dec. 31, 2013 USD ($) Customer | Dec. 31, 2012 USD ($) Customer | Dec. 31, 2011 USD ($) Customer | Dec. 31, 2010 USD ($) | Dec. 31, 2012 Amazon [Member] | Dec. 31, 2011 Amazon [Member] | Dec. 31, 2013 KOBO Inc [Member] | Dec. 31, 2012 KOBO Inc [Member] | Dec. 31, 2011 KOBO Inc [Member] | Dec. 31, 2013 Sony Corporation [Member] | Dec. 31, 2012 Sony Corporation [Member] | Dec. 31, 2011 Sony Corporation [Member] | Dec. 31, 2011 Barnes and Noble [Member] | Dec. 31, 2013 Netronix Inc [Member] | Dec. 31, 2013 Leap Frog Enterprises Inc [Member] | Dec. 31, 2013 Huizhou Desay SV Automotive Co., LTD | Dec. 31, 2013 Minimum [Member] | Dec. 31, 2013 Maximum [Member] | Dec. 31, 2013 US [Member] USD ($) | Dec. 31, 2013 Sweden [Member] EUR (€) | Dec. 31, 2013 Japan [Member] JPY (¥)
Summary of Significant Accounting Policies (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic deposit coverage limits per owner and customer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 250,000 | € 100,000 | ¥ 10,000,000
Entity-Wide Revenue, Major Customer, Percentage |  |  |  |  |  | 32.00% | 40.00% | 28.00% | 26.00% | 11.00% | 11.00% | 17.00% | 21.00% | 26.00% | 18.00% | 12.00% |  |  |  |  |  |
Percentage of net revenues earned from major customers |  | 10.00% | 10.00% | 10.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Days of reporting period stipulated in the contract |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 30 days | 45 days |  |  |
license revenues related to products shipped | 713,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of accounts receivable due by major customers |  |  |  |  |  |  |  | 46.00% | 39.00% |  |  | 24.00% |  |  |  |  | 10.00% |  |  |  |  |
Excess of insurance limits |  | 8,400,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gains or (losses) resulting from foreign currency transactions |  | (155,000) | (50,000) | 44,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency translation gain (loss) |  | 6,000 | (8,000) | 76,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue earned, number of customers |  | 29 | 20 | 7 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Advertising costs |  | 141,000 | 312,000 | 241,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unrecognized tax benefits |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted-average exchange rate for consolidated statements of operations (Swedish Krona to one U.S. Dollar) |  | 6.51 | 6.78 | 6.50 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exchange rate for the consolidated balance sheets (Swedish Krona to one U.S. Dollar) |  | 6.48 | 6.52 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted-average exchange rate for consolidated statements of operations (Japanese Yen to one U.S. Dollar) |  | 97.58 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exchange rate for the consolidated balance sheets (Japanese Yen to one U.S. Dollar) |  | 105.22 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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