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Income Taxes (Details 3) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Deferred tax assets:    
Accruals $ 1,519 $ 873
Stock compensation 1,070 1,050
Net operating losses 9,760 6,417
Total deferred tax assets 12,349 8,340
Basis difference in fixed assets (14) (38)
Valuation allowance (12,335) (8,302)
Total net deferred tax assets