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Subsequent Events (Details)
$ in Thousands
1 Months Ended 12 Months Ended
Feb. 23, 2017
USD ($)
shares
Jan. 27, 2017
USD ($)
shares
Jan. 12, 2017
USD ($)
shares
Mar. 17, 2017
Owners
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Subsequent Events [Line Items]            
Debentures converted in shares of common stock, value         $ 265 $ 4,815
Subsequent Event [Member]            
Subsequent Events [Line Items]            
Debentures converted in shares of common stock, value $ 19 $ 19 $ 19      
Debentures converted in shares of common stock (in shares) | shares 25,000 25,000 25,000      
Number of device owners notified | Owners       90