UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 12,867	$ 9,325
Marketable securities	59,587	90,590
Accounts receivable	8,725	11,330
Inventories	2,260	4,770
Prepaid expenses and other current assets	5,163	8,836
Total current assets	88,602	124,851
Property and equipment, net	770	1,911
Operating lease right-of-use assets	4,385
Goodwill	18,491	18,491
Intangible assets, net	1,019	1,629
Research and development tax credit receivable	7,694	7,272
Other non-current assets	34,927	36,146
Total assets	155,888	190,300
Current liabilities:
Current portion of long-term debt	35	106
Current portion of long-term related party payable	7,588	9,439
Current portion of operating lease liability	1,596
Accounts payable	3,538	3,503
Accrued expenses	17,017	21,695
Other current liabilities	1,989	3,640
Total current liabilities	31,763	38,383
Long-term debt, less current portion	120,132	115,734
Long-term related party payable, less current portion	14,118	19,401
Long-term operating lease liability	2,866
Other non-current liabilities	13,972	14,002
Total liabilities	182,851	187,520
Shareholders’ (deficit) equity:
Preferred shares, nominal value of $0.01 per share; 50,000 shares authorized; none issued or outstanding at September 30, 2019 and December 31, 2018, respectively	0	0
Ordinary shares, nominal value of $0.01 per share; 500,000 shares authorized; 42,857 issued and 37,450 outstanding at September 30, 2019 and 42,720 issued and 37,313 outstanding at December 31, 2018	428	427
Treasury shares, at cost, 5,407 shares held at September 30, 2019 and December 31, 2018, respectively	(49,998)	(49,998)
Additional paid-in capital	434,055	433,756
Accumulated deficit	(388,476)	(357,989)
Accumulated other comprehensive loss	(22,972)	(23,416)
Total shareholders’ (deficit) equity	(26,963)	2,780
Total liabilities and shareholders’ (deficit) equity	$ 155,888	$ 190,300