CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (13,243)	$ (15,694)
Adjustments to reconcile net loss to net cash flows used in operating activities:
Depreciation and amortization	1,118	1,265
Amortization of operating lease right-of-use asset	231
Amortization of finance lease right-of-use asset	63
Amortization (accretion) of deferred financing costs, debt discounts and debt premiums	111	(21)
Loss (gain) on extinguishment of debt	20	(376)
Gain on settlement of liability, net	(1,437)	(263)
Loss on settlement of equity instrument		385
Loss on litigation	266
Loss on issuance of convertible notes	1,870	1,328
Loss on extinguishment of convertible notes		2,903
Stock-based compensation	668	529
Impairment of intangible assets and goodwill	1,590	4,685
Provision for losses on doubtful accounts	966	581
Warrant revaluation	(416)	(1,918)
Loss on modification of warrants	1,128
Derivative revaluation	415	(267)
Changes in operating assets and liabilities:
Accounts receivable	(850)	(541)
Inventories	13	(36)
Other assets	427	127
Accounts payable	(1,884)	309
Operating lease liabilities	(223)
Accrued expenses and other liabilities	26	250
Net cash used in operating activities	(9,141)	(6,754)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property and equipment	(55)	(97)
Net cash used in investing activities	(55)	(97)
CASH FLOWS FROM FINANCING ACTIVITIES:
Principal payments on finance lease obligations	(46)	(58)
Payment of deferred financing costs	(120)	(138)
Payment of fractional common shares in conjunction with reverse stock split	(1)
Issuance of common stock, net of issuance costs	6,628	2,008
Proceeds from exercise of warrants	1,575	1,271
Proceeds from long-term debt		300
Proceeds from convertible notes	2,150	3,850
Principal payments on convertible notes	(50)
Principal payments on long-term debt	(473)	(422)
Net cash flows provided by financing activities	9,663	6,811
NET CHANGE IN CASH	467	(40)
CASH AT BEGINNING OF PERIOD	381	421
CASH AT END OF PERIOD	848	381
SUPPLEMENTAL CASH FLOW INFORMATION
Cash paid during the period for interest	36	42
SUPPLEMENTAL DISCLOSURE OF CONSULTING SERVICES OR ANY OTHER NON-CASH COMMON STOCK RELATED ACTIVITY
Purchases of equipment financed through accounts payable	1	38
Equipment financed through finance lease obligations	23	106
Deferred debt issuance cost financed through accounts payable		57
Discount of 9% on issuance of convertible bridge notes	188	405
Other current liabilities canceled in exchange for common shares		1,897
Conversion of convertible debt plus interest into common stock	7,553	2,356
Beneficial conversion feature on issuance of convertible notes	1,792	2,118
Initial valuation of derivative liability recorded in conjunction with issuance of convertible notes		610
Initial valuation of warrant liability recorded in conjunction with issuance of convertible notes	1,858	2,665
Long-term debt exchanged for convertible notes		3,191
Liabilities exchanged for convertible notes	2,150
Prepaid insurance financed with loan	434	375
Accounts payable converted to long-term debt		74
Liability recorded related to equity purchase agreement repricing	$ 460	460
Warrant liability canceled due to settlement of equity instruments		$ 456
Issuance of common stock for consulting services	-	39
Modification of warrant in conjunction with convertible note issuance		$ 11
Proceed from issuance of convertible note recorded through other current assets		250
Write-off of beneficial conversion feature in conjunction with convertible note extinguishment		1,029
Right-of-use assets obtained in exchange for lease obligations	$ 750
Amounts included in measurement of lease liabilities	273
Write-off warrant liability in conjunction with warrant exercises	2,364
Write-off of debt discounts (net of debt premiums) in conjunction with convertible note conversions	731	210
Write-off of derivative liability in conjunction with convertible note conversions	$ 477	$ 310