Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Net income (loss)	$ (15,861,000)	$ (189,000)
Less: Net loss from discontinued operations, net of tax	(848,000)	(469,000)
Net income (loss) from continuing operations	(15,013,000)	280,000
Adjustments to reconcile net income (loss) from continuing operations to net cash used in operating activities from continuing operations:
Depreciation and amortization expense	1,440,000	1,351,000
Write-down for slow moving inventory	439,000	0
Non-cash rent expense	133,000	178,000
Accretion and amortization of loan fees and non-cash interest income		(147,000)
Non-cash interest	(15,000)	0
Share-based compensation expense	2,667,000	2,674,000
Loss on disposal of property and equipment	20,000	20,000
Deferred income taxes	(193,000)	(250,000)
Changes in operating assets and liabilities:
Accounts receivable, net	2,590,000	(6,686,000)
Inventory, net	(2,700,000)	(2,346,000)
Prepaid expenses and other assets	1,461,000	(1,974,000)
Accounts payable	(612,000)	325,000
Accrued liabilities	(3,352,000)	(820,000)
Deferred income	8,000	49,000
Long-term liabilities	220,000	0
Net cash used in operating activities from continuing operations	(12,907,000)	(7,346,000)
Cash flows from investing activities from continuing operations
Purchases of property and equipment	(3,974,000)	(729,000)
Net cash used in investing activities from continuing operations	(3,974,000)	(729,000)
Cash flows from financing activities from continuing operations
Proceeds from exercise of share options	99,000	3,926,000
Payments of tax withheld on exercises of options and vesting of restricted share units	(189,000)	(224,000)
Repurchases of ordinary shares	(7,732,000)	(3,325,000)
Net cash provided by (used in) financing activities from continuing operations	(7,822,000)	377,000
Net cash flows used in continuing operations	(24,703,000)	(7,698,000)
Cash flows from discontinued operations
Net operating cash flows provided by discontinued operations	147,000	0
Net investing cash flows provided by discontinued operations	4,500,000	0
Net cash flows provided by discontinued operations	4,647,000	0
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(593,000)	(864,000)
Net decrease in cash, cash equivalents and restricted cash	(20,649,000)	(8,562,000)
Cash, cash equivalents and restricted cash at beginning of period	181,370,000	192,944,000
Cash, cash equivalents and restricted cash at end of period	160,721,000	184,382,000
Supplemental disclosure of non-cash investing and financing information:
Purchases of property and equipment included in accounts payable and accrued expenses	$ 697,000	$ 186,000