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Concentrations (Details Textual)
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
Concentrations (Textual)  
Amount of FDIC insures $ 250
Revenue [Member]  
Concentrations (Textual)  
All revenues, percentage 26.00%
Accounts Receivable [Member]  
Concentrations (Textual)  
All revenues, percentage 67.00%