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Stockholders' Equity and Redeemable Convertible Preferred Stock (Details Narrative) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Feb. 26, 2017
Unrecognized stock-based compensation expense $ 0    
2014 Equity Incentive Plan [Member]      
Number of shares available for grant 8,250,000   4,161,892
Total share authorization 434,210    
Stock Option [Member] | Employee [Member]      
Allocated stock based compensation $ 4 $ 131  
Stock Option [Member] | Non-Employee [Member]      
Allocated stock based compensation $ 4 $ 131