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Business Acquisition - Additional Information (Details) - Sensi ML - USD ($)
3 Months Ended
Mar. 31, 2019
Jan. 03, 2019
Restructuring Cost And Reserve [Line Items]    
Business Acquisition, Date of Agreement Jan. 03, 2019  
Amortization of intangible assets $ 38,000  
Acquisition costs $ 104,000  
Common stock escrow security   $ 200,000