Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Assets
Cash and cash equivalents	$ 70,156	$ 90,332
Accounts receivable, net	7,080	6,021
Inventory, net	6,114	7,137
Prepaid expenses and other assets	2,957	2,711
Current assets held for sale	31,899	14,281
Total current assets	118,206	120,482
Restricted cash, non-current	200	200
Property and equipment, net	6,428	2,764
Goodwill	2,483	2,483
Other intangible assets, net	958	1,036
Deferred tax asset	885	2,486
Noncurrent assets held for sale		14,785
Total assets	129,160	144,236
Liabilities and shareholders’ equity
Accounts payable	3,685	5,552
Accrued liabilities	10,189	7,807
Settlement liability	4,530	4,342
Deferred income	31	36
Current portion of loans payable	30,200	78
Current liabilities held for sale	4,361	4,630
Total current liabilities	52,996	22,445
Long-term portion of loans payable	97	29,856
Settlement liability	4,064	3,894
Other liabilities		364
Noncurrent liabilities held for sale	37	48
Total liabilities	57,194	56,607
Commitments and contingencies (Notes 3, 7, and 11)
Shareholders' equity:
Ordinary shares, £0.006705 nominal value; 36,183,293 shares authorized at September 30, 2018 and December 31, 2017, and 26,337,963 and 25,661,634 shares issued and outstanding at September 30, 2018 and December 31, 2017, respectively	276	269
Additional paid-in capital	300,802	294,613
Accumulated deficit	(221,822)	(201,541)
Accumulated other comprehensive loss	(7,290)	(5,712)
Total shareholders’ equity	71,966	87,629
Total liabilities and shareholders’ equity	$ 129,160	$ 144,236