Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
OPERATING ACTIVITIES:
Net loss	$ (2,755)	$ (2,291)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation of property and equipment	11	16
Amortization of intangible assets, license and supply agreement and finance lease right-of-use asset	90	88
Non-cash stock-based compensation, including stock options and restricted stock	401	308
Inventory reserve	1	37
Change in fair value of contingent consideration	(42)	(19)
Accretion of contingent consideration	8	28
Loss on foreign currency transactions	14	6
(Increase) decrease in operating assets:
Accounts receivable	175	(87)
Inventory	(2,208)	(487)
Prepaid expenses and other current assets	137	(5)
Operating right-of-use assets and operating lease liabilities	11
Other assets	(57)	(21)
Increase in operating liabilities:
Accounts payable	343	73
Accrued expenses	311	328
Net cash used in operating activities	(3,560)	(2,026)
INVESTING ACTIVITIES:
Purchase of equipment	(226)
Acquisition of the Aether business		(137)
Net cash used in investing activities	(226)	(137)
FINANCING ACTIVITES:
Proceeds from issuance of common stock	6,771	1,992
Proceeds from Paycheck Protection Program Loan	479
Net (payments on) proceeds from secured revolving credit facility	(560)	30
Payments on secured note payable	(113)	(105)
Principal payments on finance lease liability	(1)
Principal payments on equipment financing	(1)
Proceeds from exercise of warrants	163
Proceeds from exercise of options	7
Payment of contingent consideration	(79)	(16)
Net cash provided by financing activities	6,666	1,901
Effect of foreign exchange rates on cash		(1)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	2,880	(263)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	4,166	4,581
CASH AND CASH EQUIVALENTS, END OF PERIOD	7,046	4,318
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Cash paid for interest expense	65	62
Cash paid for income taxes	21	4
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING INFORMATION
Right-of-use asset obtained in exchange for operating lease liability	201	800
Right-of-use asset obtained in exchange for finance lease liability	17
Purchase of equipment included in accrued expenses		$ 14