Condensed Consolidated Statements of Cash Flows - USD ($)	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities:
Net loss	$ (16,509,000)	$ (11,578,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	1,899,000	2,152,000
Amortization of deferred financing costs	320,000	361,000
Non-cash interest	728,000	(148,000)
Provision for doubtful accounts receivable	78,000	99,000
Inventory impairment	0	40,000
Stock based compensation	935,000	669,000
Unrealized foreign exchange on intercompany payables	2,824,000	432,000
Settlement gain	0	(5,609,000)
Changes in operating assets and liabilities:
Accounts receivable	3,300,000	117,000
Inventory	(2,263,000)	(659,000)
Prepaid expenses and other assets	28,000	(153,000)
Accounts payable and accrued expenses	(4,612,000)	1,550,000
Net cash used in operating activities	(13,272,000)	(12,727,000)
Cash flows from investing activities:
Purchases of property and equipment	(388,000)	(377,000)
Purchases of intangibles and other assets	(70,000)	(99,000)
Proceeds from sale of equipment	0	18,000
Net cash used in investing activities	(458,000)	(458,000)
Cash flows from financing activities:
Proceeds from exercise of stock options	2,000	7,000
Proceeds from long-term debt	2,824,000	35,000,000
Payments of deferred financing costs	(241,000)	(1,221,000)
Payment of long-term debt	0	(21,668,000)
Net cash provided by financing activities	2,585,000	12,118,000
Effect of exchange rate changes on cash	(67,000)	(11,000)
Net change in cash, cash equivalents and restricted cash	(11,212,000)	(1,078,000)
Cash, cash equivalents and restricted cash at beginning of year	30,921,000	25,007,000
Cash, cash equivalents and restricted cash at end of period	19,709,000	23,929,000
Supplemental disclosure of cash flow information:
Cash paid for interest	1,606,000	1,753,000
Cash paid for income taxes	13,000	32,000
Right-of-use assets recognized in exchange for lease obligations (non-cash)	$ (46,000)	$ 2,789,000