Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Cash flows from operating activities
Net income (loss)	$ (1,809,000)	$ 120,779,000
Less: Net income (loss) from discontinued operations, net of tax	(469,000)	108,274,000
Net income (loss) from continuing operations	(1,340,000)	12,505,000
Adjustments to reconcile net income (loss) from continuing operations to net cash used in operating activities:
Depreciation and amortization of intangible assets	1,753,000	1,662,000
Non-cash rent expense	247,000
Non-cash interest	(184,000)
Intangible assets impairment charges		879,000
Accretion and amortization of loan fees		2,408,000
Share-based compensation expense	3,613,000	4,507,000
Loss on disposal of property and equipment	49,000	115,000
Deferred income taxes	(38,000)	(38,760,000)
Changes in operating assets and liabilities:
Accounts receivable, net	(4,263,000)	(3,390,000)
Inventory, net	(2,826,000)	(1,015,000)
Prepaid expenses and other assets	1,386,000	207,000
Accounts payable	(360,000)	(10,375,000)
Accrued liabilities	(5,093,000)	3,252,000
Other liabilities, net		(4,209,000)
Deferred income	(107,000)	95,000
Net cash used in operating activities from continuing operations	(7,163,000)	(32,119,000)
Cash flows from investing activities
Purchases of property and equipment	(1,658,000)	(5,350,000)
Net cash used in investing activities from continuing operations	(1,658,000)	(5,350,000)
Cash flows from financing activities
Proceeds from exercise of share options	4,035,000	3,241,000
Payments of tax withheld on vesting of restricted share units	(224,000)	(383,000)
Repurchases of ordinary shares	(6,992,000)
Payments on capital lease		(60,000)
Loss on extinguishment of debt		(2,105,000)
Change in loans payable		(30,000,000)
Net cash used in financing activities from continuing operations	(3,181,000)	(29,307,000)
Net cash flows of continuing operations	(12,002,000)	(66,776,000)
Cash flows from discontinued operations
Net operating cash flows provided by discontinued operations		14,729,000
Net investing cash flows provided by discontinued operations		156,218,000
Net financing cash flows used in discontinued operations		(48,000)
Net cash flows of discontinued operations		170,899,000
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	428,000	(1,711,000)
Net increase (decrease) in cash, cash equivalents, and restricted cash	(11,574,000)	102,412,000
Cash, cash equivalents, and restricted cash at beginning of year	192,944,000	90,532,000
Cash, cash equivalents, and restricted cash at end of year	181,370,000	192,944,000
Supplemental disclosures
Cash received (paid) for interest	4,071,000	(2,656,000)
Cash paid for taxes	$ (2,702,000)	$ (76,000)