CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash Flows From Operating Activities
Net loss	$ (2,124,672)	$ (3,301,930)
Adjustments to reconcile net loss to net cash and cash equivalents used in operating activities:
Bad debt expense (recovery)	(13,280)	175,695
Depreciation and amortization	427,426	294,906
Provision for product warranties	72,494	174,723
Stock based compensation	823,494	303,465
Decrease (increase) in:
Accounts receivable	(5,687,126)	(2,146,942)
Inventories	(958,677)	(438,290)
Prepaid and other current assets	(782,664)	424,500
Increase (decrease) in:
Accounts payable and accrued expenses	821,979	964,837
Deferred revenue	617,009	(197,774)
Product warranties	(107,300)	(104,725)
Total Adjustments	(4,786,645)	(549,605)
Net Cash Used In Operating Activities	(6,911,317)	(3,851,535)
Cash Flows from Investing Activities
Acquisition of property and equipment	(762,375)	(240,734)
Investment in debt securities - held to maturity		(264,365)
Investments matured	1,104,635	4,816,000
Net Cash Provided By Investing Activities	342,260	4,310,901
Cash Flows from Financing Activities
Offering of common stock	17,249,995
Offering cost	(1,402,336)
Revolving credit facility, net	(2,214,970)	1,625,970
Withholding taxes on stock compensation	(118,648)	(289,286)
Exercise of warrants	90,867
Net Cash Provided By Financing Activities	13,604,908	1,336,684
Net Increase in Cash and Cash Equivalents	7,035,851	1,796,050
Cash and Cash Equivalents - Beginning	10,085,468	5,042,477
Cash and Cash Equivalents - Ending	17,121,319	6,838,527
Supplemental Disclosure of Cash Flow Information
Interest Paid	143,901	43,316
Non Cash Investing and Financing Activities
Transfer of inventory to property and equipment	158,016
Transfer of property and equipment to inventory		$ 35,393