Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Assets
Cash and cash equivalents	$ 36,713	$ 59,110
Accounts receivable, net	18,016	13,265
Inventory, net	9,480	7,437
Prepaid expenses and other assets	2,907	2,390
Total current assets	67,116	82,202
Restricted cash, non-current	200	200
Property and equipment, net	8,786	7,793
In-process research and development	16,170	16,170
Goodwill	3,967	3,822
Other intangible assets, net	10,410	11,017
Deferred tax asset	6,133	2,630
Other assets	145	178
Total assets	112,927	124,012
Liabilities and shareholders’ equity
Accounts payable	3,874	3,201
Accrued liabilities	15,734	14,282
Settlement liability	2,317
Contingent purchase price consideration	880	882
Deferred income	43	41
Current portion of loans payable	87	84
Total current liabilities	22,935	18,490
Long-term portion of loans payable	29,670	29,601
Settlement liability	7,472
Contingent purchase price consideration		2,593
Other liabilities	364	364
Total liabilities	60,441	51,048
Commitments and contingencies (Note 2)
Shareholders' equity:
Ordinary shares, £0.006705 nominal value; 36,183,293 shares authorized at June 30, 2017 and December 31, 2016, and 23,014,032 and 22,635,431 shares issued and outstanding at June 30, 2017 and December 31, 2016, respectively	247	243
Additional paid-in capital	251,989	249,128
Accumulated deficit	(193,494)	(168,656)
Accumulated other comprehensive loss	(6,256)	(7,751)
Total shareholders’ equity	52,486	72,964
Total liabilities and shareholders’ equity	$ 112,927	$ 124,012