Condensed Consolidated Statements of Cash Flows (Unaduited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (3,003)	$ (3,261)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	277	264
Amortization of intangibles	468	466
Stock issued and stock to be issued for compensation, royalties and services	51	66
Unrealized gain on derivative liability		(84)
Provision for bad debt expense and returns allowances	106	6
Deferred income taxes		(250)
Inventory reserve	113	58
Non-cash unrealized foreign currency gains	(218)	(295)
Gain on disposal of assets	(2)
(Increase) decrease in operating assets:
Trade accounts receivable	1,130	(1,040)
Inventories	82	910
Contract assets	(841)	625
Prepaid expenses, deposits and other assets	122	(137)
Right of use assets - operating leases	283
Increase (decrease) in operating liabilities:
Accounts payable	(279)	(694)
Operating lease obligations	(264)
Accrued expenses	(1,143)	(308)
Refund liabilities	177	386
Contract liabilities	220	385
NET CASH USED IN OPERATING ACTIVITIES	(2,721)	(2,903)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(69)	(154)
Proceeds from sale of property and equipment	2
Investments in other intangible assets	(148)	(239)
Investment in investment - equity method	(345)
NET CASH USED IN INVESTING ACTIVITIES	(560)	(393)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from overdraft facility	5,272	4,982
Payments on overdraft facility	(5,681)	(4,155)
Proceeds from line of credit	7,916	1,166
Payments on line of credit	(7,436)	(1,166)
Payments on financing lease obligations	(1)	(1)
Payments on mortgage note payable		(24)
Payments on contingent consideration		(45)
NET CASH PROVIDED BY FINANCING ACTIVITIES	70	757
Effect of exchange rate changes on cash	25	53
Net decrease in cash, cash equivalents and restricted cash	(3,186)	(2,486)
Cash, cash equivalents and restricted cash at beginning of period	4,502	12,646
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD	1,316	10,160
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Income taxes paid	65	23
Interest paid, net of capitalized interest	85	114
SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING AND FINANCING ACTIVITIES:
Non-cash item for January 1, 2019 adoption of ASC 842 - establishment of right-of-use assets and offsetting lease obligations	7,703
Non-cash investment in investment - equity method including convertible notes receivable, certain property and equipment, other intangible assets, inventories, prepaid assets, open purchases orders, and future research and development expenditures	4,933
Common stock issued and to be issued for royalties payable pursuant to product agreements, related party	3	7
Common stock issued and to be issued for consulting services and compensation in common stock	37	213
Partial settlement of note receivable via offset against royalty payable netted with (increase) to note receivable from accrued interest	9	(2)
Accrued property and equipment purchases at March 31	18	54
Accrued investment in other intangible assets at March 31	$ 7	$ 31