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Loans Payable (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended
Jan. 16, 2018
Dec. 12, 2016
Jun. 29, 2016
Jun. 13, 2016
May 03, 2016
Apr. 27, 2018
Aug. 17, 2016
Mar. 31, 2018
Mar. 31, 2017
Loans Payable (Textual)                  
Principal amount               $ 8,401  
Warrants to purchase common stock               16,482,635  
Debt discount amortized               $ 345 $ 195
Fair value of warrants on the issuance               $ (197) $ 8
Subsequent Event [Member] | Slipstream Communications, LLC [Member]                  
Loans Payable (Textual)                  
Principal amount           $ 300      
Terms of warrant           5 years      
Maturity date           Jan. 16, 2019      
Warrants to purchase common stock           4,313,725      
Adjusted per share price value           $ 0.27      
Loan and Security Agreement [Member] | Slipstream Communications, LLC [Member]                  
Loans Payable (Textual)                  
Principal amount   $ 1,000              
Borrowed loan $ 1,000 $ 786         $ 3,000    
Term loan interest percentage 8.00% 8.00%         8.00%    
Terms of warrant 5 years 5 years         5 years    
Maturity date Jan. 16, 2019 Feb. 01, 2017         Aug. 17, 2017    
Warrants to purchase common stock 1,851,852 1,542,452         5,882,352    
Share price per share $ 0.27 $ 0.28         $ 0.28    
Aggregate fees   $ 37         $ 20    
Fair value of warrants   $ 136         361    
Additional advances             $ 1,000    
Secured convertible promissory note [Member]                  
Loans Payable (Textual)                  
Principal amount     $ 50 $ 450 $ 500        
Terms of warrant     5 years 5 years 5 years        
Warrants to purchase common stock     89,286 803,572 892,857        
Share price per share     $ 0.28 $ 0.28 $ 0.28        
Fair value of warrants     $ 6 $ 57 $ 89        
Revised fair value of warrants       40 60        
Interest rate, description               The secured convertible promissory notes bear interest at the rate of 14% per annum. Of this amount, 12% per annum is payable monthly in cash, and the remaining 2% per annum is payable in the form an additional principal through increases in the principal amount of the note. Upon the consummation of a change in control transaction of the company or a default, interest on the secured convertible promissory note will increase to the rate of 17% per annum.  
Proceeds from convertible debt       300          
Exchanged short term notes       $ 150          
Incurred sales commissions         $ 25