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Acquisitions - Summary of Unaudited Pro Forma Information (Details) - Antenna Plus - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Business Acquisition [Line Items]        
Pro forma sales $ 14,971,682 $ 13,506,610 $ 28,276,779 $ 26,533,604
Pro forma income from operations (3,649,286) (130,412) (4,812,954) 680,581
Pro forma net income $ (3,190,347) $ (73,379) $ (4,296,138) $ 697,231