CONDENSED STATEMENTS OF CASH FLOWS (unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash Flows From Operating Activities
Net loss	$ (1,572,133)	$ 2,081
Adjustments to reconcile net income (loss) to net cash and cash equivalents used in operating activities:
Bad debt expense	169,054	0
Depreciation and amortization	94,157	84,795
Provision for product warranties	80,122	734
Stock based compensation	104,070	1,619
(Increase) decrease in:
Accounts receivable	(1,290,900)	(250,368)
Inventories	(282,406)	138,269
Prepaid and other current assets	(256,274)	(721,201)
Increase (decrease) in:
Accounts payable and accrued expenses	559,423	250,050
Deferred revenue	(297,879)	(85,739)
Product warranties	(68,300)	(8,855)
Total Adjustments	(1,188,933)	(590,696)
Net Cash Used In Operating Activities	(2,761,066)	(588,615)
Cash Flows from Investing Activities
Acquisition of property and equipment	(144,492)	(232,906)
Investment in debt securities - held to maturity	(1,840,228)
Investments matured	1,500,000
Net Cash Used In Investing Activities	(484,720)	(232,906)
Cash Flows from Financing Activities
Revolving credit facility, net	1,500,000	377,298
Withholding taxes on stock compensation	(155,468)
Offering costs		126,254
Net Cash Provided By Financing Activities	1,344,532	503,552
Net Decrease in Cash and Cash Equivalents	(1,901,254)	(317,969)
Cash and Cash Equivalents - Beginning	5,042,477	5,065,068
Cash and Cash Equivalents - Ending	3,141,223	4,747,099
Supplemental Disclosure of Cash Flow Information
Interest Paid	6,641	7,916
Non Cash Investing and Financing Activities
Reclassification of Prepaid Offering Costs to APIC		130,629
Transfer of inventory units to property and equipment		$ 44,854