Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities:
Net loss	$ (5,895,000)	$ (33,645,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	604,000	506,000
Stock based compensation expense	459,000	475,000
Amortization of debt discount	1,799,000	800,000
(Recovery of)/reserve for excess and slow-moving inventories	141,000	(126,000)
(Recovery of)/reserve for bad debt expense	(53,000)	75,000
Change in fair value of derivative obligation	2,000	(591,000)
Deferred income tax benefit		(3,451,000)
Loss on disposal of equipment	20,000	451,000
Loss on extinguishment of debt	840,000
Impairment of intangible asset		27,202,000
Net change in operating assets and liabilities:
Accounts receivable	(2,908,000)	543,000
Inventories	980,000	336,000
Prepaid expenses and other assets	(227,000)	304,000
Accounts payable	(542,000)	(407,000)
Related party payable	(116,000)	(135,000)
Accrued payroll and related expenses	(298,000)	(147,000)
Deferred revenue	354,000	66,000
Other current liabilities	(145,000)	314,000
Long term deferred revenue and other noncurrent liabilities	1,467,000	(1,000)
Net cash used in operating activities	(3,518,000)	(7,431,000)
Cash flows from investing activities:
Capital expenditures	(178,000)	(985,000)
Net cash used in investing activities	(178,000)	(985,000)
Cash flows from financing activities:
Payments on finance lease obligations	(15,000)	(28,000)
Proceeds from long-term debt	1,800,000
Proceeds from convertible promissory note – related party	1,513,000	500,000
Proceeds from exercise of pre-funded warrants	42,000
Proceeds from issuance of common stock and pre-funded warrants	756,000	6,655,000
Net cash provided by financing activities	4,096,000	7,127,000
Effects of exchange rate changes on cash and cash equivalents		(4,000)
Net increase (decrease) in cash, cash equivalents and restricted cash	400,000	(1,293,000)
Cash, cash equivalents and restricted cash at beginning of period	3,400,000	3,513,000
Cash, cash equivalents and restricted cash at end of period	3,800,000	2,220,000
Supplemental disclosures of cash flow information:
Cash paid for interest	1,613,000	664,000
Supplemental non-cash financing and investing information:
Recording of beneficial conversion feature on debt	2,313,000	7,200,000
Right-to-use asset acquired under operating lease	966,000
Conversion of debt to common stock	216,000
Fair value of amended convertible note issued in connection with the extinguishment of original convertible note	1,473,000
Transfer of equipment to inventories	33,000	172,000
Transfer of inventories to equipment		$ 420,000