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Leases (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Oct. 31, 2019
Sep. 30, 2019
Sep. 30, 2019
Dec. 31, 2018
Lessee Description [Abstract]        
ROU asset   $ 4 $ 4 $ 45
Lease liability   4 4 45
Lease expense   $ 14 $ 41  
Current Assets [Member]        
Lessee Description [Abstract]        
Prepaid lease payments for promotional and marketing facility       385
Subsequent Event [Member] | Office Space Lease Extension [Member]        
Lessee Description [Abstract]        
Lease extension period 2 years      
ROU asset $ 111      
Lease liability 111      
2019 9      
2020 56      
2021 $ 46      
ASU 2016-02 [Member] | Noncurrent Assets [Member]        
Lessee Description [Abstract]        
Prepaid lease payments for promotional and marketing facility       $ 385