Consolidated Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Operating activities:
Net loss	$ (6,972,000)	$ (5,277,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	50,000	219,000
Loss on disposal of property and equipment	32,000	1,000
Impairment of operating lease right-of-use assets	125,000
Stock option modification expense	45,000	77,000
Issuance of RSUs to employees	228,000
Non-cash gain on change in fair value of warrant liability	(936,000)	(971,000)
Non-cash gain on embedded derivative liability	(423,000)
Interest expense related to amortization of debt issuance and debt discount	498,000
Interest expense related to amortization of debt issuance related to related party notes payable	16,000
Issuance of warrants for service	59,000
Changes in operating assets and liabilities:
Accounts receivable	1,880,000	1,546,000
Inventory	(558,000)	89,000
Prepaid expenses and other assets	573,000	379,000
Operating lease right-of-use assets	679,000
Other assets long-term	10,000	48,000
Accounts payable and accrued liabilities	(1,551,000)	(56,000)
Operating lease liabilities	(788,000)
Deferred rent		(48,000)
Deferred revenue	(41,000)	(13,000)
Related party notes payable	159,000
Long-term obligations	117,000
Net cash (used) in operating activities	(6,500,000)	(3,575,000)
Investing activities:
Purchases of property and equipment	(19,000)	(13,000)
Net cash (used) by investing activities	(19,000)	(13,000)
Financing activities:
Proceeds from preferred stock issuances, net	2,598,000
Proceeds from common stock issuances, net	6,700,000	5,585,000
Proceeds from issuance of notes payable, related party	1,000,000
Proceeds from exercise of options, net	189,000	11,000
Proceeds from stock options & RSUs sold to cover taxes	4,000	1,000
Proceeds from exercise of warrants	67,000
Proceeds from convertible notes, net of discount	2,000,000
Debt issuance cost	(202,000)
Net cash provided by investing activities	12,356,000	5,597,000
Net increase in cash, cash equivalents, and restricted cash	5,837,000	2,009,000
Cash, cash equivalents and restricted cash, beginning of period	3,658,000	3,673,000
Cash, cash equivalents and restricted cash, end of period	9,495,000	5,682,000
Supplemental disclosure of non cash information:
Addition of operating lease, right-of-use asset	2,473,000
Fixed asset purchases, included in accounts payable and accrued liabilities	10,000	7,000
Proceeds from stock options and restricted stock for taxes, in accounts payable and accrued liabilities		1,000
Warrant liability transferred to equity	553,000
Fair value of warrants issued in connection with financings	5,269,000
Employees and Directors [Member] | Share-based Payment Arrangement, Option [Member]
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation expense for options and stock issued	270,000	413,000
Nonemployees [Member] | Share-based Payment Arrangement, Option [Member]
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation expense for options and stock issued	28,000	18,000
Accounting Standards Update 2014-09 [Member]
Supplemental disclosure of non cash information:
Cumulative effect of adoption of New ASU		2,638,000
Accounting Standards Update 2017-11 [Member]
Supplemental disclosure of non cash information:
Cumulative effect of adoption of New ASU	$ 56,000