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Note 3 - Commitments And Contingencies (Detail) | 12 Months Ended | 24 Months Ended |  |  |  |  |  |  |  |  |  |  |  | 1 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2012 USD ($) | Dec. 31, 2012 USD ($) | Dec. 31, 2013 USD ($) | May 04, 2013 | Dec. 31, 2011 USD ($) | Nov. 18, 2007 | Oct. 31, 2007 USD ($) | Oct. 19, 2007 | May 31, 2007 USD ($) | May 04, 2007 | May 31, 2007 Series A Preferred Stock [Member] | Dec. 31, 2012 Korean Business Segment [Member] USD ($) | May 31, 2007 Maximum [Member] USD ($) | Nov. 18, 2007 Seven Year Warrants [Member] | Oct. 19, 2007 Seven Year Warrants [Member] | Oct. 31, 2007 Seven Year Warrants [Member] | Oct. 19, 2007 One Year Warrants [Member] | Oct. 31, 2007 One Year Warrants [Member] | Nov. 18, 2007 Five Year Warrants [Member] | Oct. 19, 2007 Five Year Warrants [Member] | Dec. 31, 2012 Korean Business Segment [Member] KRW
Operating Leases, Rent Expense | $ 740,000 | $ 744,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase Obligation, Due in Next Twelve Months |  |  | 260,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase Requirement, Incremental Amount | 40,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Assets, Noncurrent (in Won) | 258,000 | 258,000 |  |  | 241,000 |  |  |  |  |  |  | 94,000 |  |  |  |  |  |  |  |  | 100,000,000
Other Assets, Noncurrent | 258,000 | 258,000 |  |  | 241,000 |  |  |  |  |  |  | 94,000 |  |  |  |  |  |  |  |  | 100,000,000
Preferred Stock, Shares Issued (in Shares) |  |  |  |  |  |  |  |  |  |  | 1,759,307 |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares) | 3,704,854 | 3,704,854 |  |  |  | 1,495,952 |  | 3,141,499 | 1,759,307 | 2,059,307 |  |  |  |  | 1,495,952 | 1,495,952 | 1,495,952 | 1,495,952 | 149,595 | 149,595 |
Loss Contingency, Range of Possible Loss, Portion Not Accrued |  |  |  |  |  |  |  |  | 0.02 |  |  |  | 60,000 |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item) |  |  |  | 5.00 |  |  |  |  |  | 5.00 |  |  |  |  |  |  |  |  |  | 3.52 |
Convertible Debt |  |  |  |  |  |  | $ 4,250,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Term of Warrant |  |  |  |  |  |  |  |  |  |  |  |  |  | 7 years | 7 years | 7 years | 1 year | 1 year | 5 years | 5 years |

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