Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities
Net loss	$ (2,749,000)	$ (2,429,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock option compensation expense	352,000	320,000
Common stock issued in lieu of salary to officers and fees for services from vendors	206,000	196,000
Common stock issued for interest	25,000	165,000
Interest expense related to amortization of the discount on convertible notes payable and line of credit and deferred financing costs	851,000	635,000
Interest expense related to the fair value of warrants issued as consent for variable debt	54,000
Loss on extinguishment of debt	184,000
Deferred offering expense		4,000
Amortization and depreciation expense	16,000	10,000
Changes in assets and liabilities:
Accounts receivable	47,000	(8,000)
Inventories		(3,000)
Accounts payable and accrued expenses	129,000	127,000
Prepaid expenses and other current assets	(16,000)	(13,000)
Customer deposits	32,000
Net cash used in operating activities	(869,000)	(996,000)
Cash flows from investing activities
Equipment purchases		(19,000)
Net cash used in investing activities		(19,000)
Cash flows from financing activities
Proceeds from convertible notes payable	750,000	380,000
Proceeds from the sale of stock in Clyra Medical	110,000
Repayment of note payable	(300,000)
Proceeds from sale of stock to Lincoln Park Capital		168,000
Proceeds from notes payable	170,000
Proceeds from line of credit		390,000
Net cash provided by financing activities	730,000	938,000
Net effect of foreign currency translation	(4,000)	8,000
Net change in cash	(143,000)	(69,000)
Cash at beginning of year	655,000	990,000
Cash at end of period	512,000	921,000
Supplemental disclosures of cash flow information
Interest	32,000
Income taxes	3,000
Non-cash investing and financing activities
Fair value of warrants issued with convertible notes	1,061,000	282,000
Right of use, operating lease and liability	399,000
Deemed dividend	342,000	297,000
Conversion of Convertible Notes Payable into Common Stock [Member]
Non-cash investing and financing activities
Conversion of debt	220,000
Conversion of Convertible Notes Issued with Original Issue Discount [Member]
Non-cash investing and financing activities
Conversion of debt	217,000
Stock Issued for Financing Fee [Member]
Non-cash investing and financing activities
Fair value of stock issued		$ 85,000