REVENUE - Disaggregation of Revenue (Details) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Disaggregation of Revenue [Line Items]
Revenue recognized in the income statement by product line	$ 10,833,058	$ 12,169,718
Electronics
Disaggregation of Revenue [Line Items]
Revenue recognized in the income statement by product line	4,646,597	4,807,030
Manufactured
Disaggregation of Revenue [Line Items]
Revenue recognized in the income statement by product line	430,593	954,779
Re-Sell
Disaggregation of Revenue [Line Items]
Revenue recognized in the income statement by product line	5,121,445	5,692,806
Service
Disaggregation of Revenue [Line Items]
Revenue recognized in the income statement by product line	$ 634,423	$ 715,103