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Income Taxes (Details 3) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Deferred tax assets:    
Accruals $ 873 $ 26
Stock compensation 1,050 1,080
Net operating losses 6,417 4,116
Total deferred tax assets 8,340 5,222
Basis difference in fixed assets (38)   
Valuation allowance (8,302) (5,222)
Total net deferred tax assets