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Income Taxes (Details 3) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Deferred tax assets:
Accruals	$ 71	$ 111
Stock compensation	567	789
Net operating losses	14,982	14,288
Basis difference in fixed assets
Total deferred tax assets	15,620	15,188
Valuation allowance	(15,620)	(15,188)
Total net deferred tax assets

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