Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2018		Dec. 31, 2017
Cash Flows From Operating Activities:
Net loss	$ (4,743,745)		$ (4,918,699)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and intangible asset amortization expense	163,700		44,865
Amortization of debt discounts			37,637
Amortization of original issue discount on notes payable			25,520
Gain on change in derivative liabilities	(21,403)	[1]	(66,934)	[2]
Compensation paid in equity	2,029,430		2,139,865
Provision for doubtful accounts	13,755		14,267
Provision for excess and obsolete inventory	(28,037)		276,015
Loss on extinguishment of debt			643,428
Loss on disposal of other assets	19,279		26,682
Changes in operating assets and liabilities:
Accounts receivable	198,647		(389,690)
Inventory	(385,227)		(50,732)
Prepaid expenses and other	165,660		(209,032)
Accounts payable and accrued liabilities	61,767		289,905
Deferred revenue	(313,161)		(86,697)
Accrued interest			(9,772)
Deferred rent	(9,438)		17,396
Lease deposit			(51,000)
Net cash used in operating activities	(2,848,773)		(2,266,976)
Cash Flows From Investing Activities
Capitalization of intangible assets	(5,028)		(18,624)
Purchases of property and equipment	(261,222)		(183,783)
Proceeds from payment of tenant improvement allowance	100,000
Cash disbursed for equipment held for lease	(16,237)		(159,806)
Payments received on note receivable			157,218
Net cash used in investing activities	(182,487)		(204,995)
Cash Flows From Financing Activities
Cash proceeds from sale of common stock and warrants	1,210,000		4,453,080
Payments on convertible notes payable			(270,000)
Proceeds from issuance of notes payable			500,000
Proceeds from exercises of stock options	3,375
Proceeds from exercise of investor warrants	15,000
Repurchase of common shares from related party	(400,000)
Repurchase of preferred stock from related party	(5,000)
Payments on loans from shareholders	(6,927)		(62,456)
Net cash provided by financing activities	816,448		4,620,624
Net (decrease) increase in cash	(2,214,812)		2,148,653
Cash, beginning of year	2,468,199		319,546
Cash, end of year	253,387		2,468,199
Supplemental cash flow information:
Interest paid			44,150
Non-cash investing and financing activities:
Conversions of promissory notes and accrued interest to common stock			1,751,155
Equity issued in settlement	226,400
Extinguishment of derivative liability on cashless exercise of warrants	389,477
Settlement liability reclassified from deferred revenue			322,776
Warrant modification included in loss on extinguishment of debt			59,000
Common shares issued with notes payable			39,129
Discount on notes payable			37,500
Unpaid purchases of equipment and other assets	$ 4,500		$ 18,729

[1] The gain on change in derivative liabilities presented in the statements of operations for the year ended December 31, 2018 represents the gain on derivatives through the cashless exercise of all of the associated warrants during the first quarter of 2018.

[2] Represents the gain on change in derivative liabilities for the year ended December 31, 2017.