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Accrued Expenses (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Accrued Expenses [Line Items]    
Employee-related Liabilities, Current $ 72 $ 297
Accrued Marketing Costs, Current 373 683
Other Accrued Liabilities, Current 322 343
Accounts Payable and Accrued Liabilities, Current $ 767 $ 1,323