Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition (Narrative) (Details)

v3.10.0.1
Revenue Recognition (Narrative) (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Segment Reporting Information [Line Items]        
Sales $ 15,291,993 $ 20,412,439 $ 47,103,837 $ 63,280,980
Net2Edge [Member]        
Segment Reporting Information [Line Items]        
Sales $ 405,000 $ 182,000 $ 1,251,000 $ 719,000