Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 9,774	$ 9,325
Marketable securities	54,384	90,590
Accounts receivable	8,281	11,330
Inventories, net	3,570	4,770
Research and development tax credit receivable	2,107	283
Prepaid expenses and other current assets	4,264	8,553
Total current assets	82,380	124,851
Property and equipment, net	544	1,911
Operating lease right-of-use assets	3,612	0
Goodwill	18,491	18,491
Intangible assets, net	813	1,629
Research and development tax credit receivable	6,322	7,272
Other non-current assets	39,274	36,146
Total assets	151,436	190,300
Current liabilities:
Current portion of long-term debt	0	106
Current portion of long-term related party payable	5,554	9,439
Current portion of operating lease liability	645	0
Accounts payable	6,100	3,503
Accrued expenses	19,810	21,695
Other current liabilities	3,875	3,640
Total current liabilities	35,984	38,383
Long-term debt, less current portion	121,686	115,734
Long-term related party payable, less current portion	11,773	19,401
Long-term operating lease liability	2,319	0
Other non-current liabilities	8,873	14,002
Total liabilities	180,635	187,520
Shareholders’ (deficit) equity:
Preferred shares, nominal value of $0.01 per share; 50,000 shares authorized; none issued or outstanding at December 31, 2019 and December 31, 2018, respectively	0	0
Ordinary shares, nominal value of $0.01 per share; 500,000 shares authorized; 42,927 issued and 37,520 outstanding at December 31, 2019, and 42,720 issued and 37,313 outstanding at December 31, 2018	429	427
Treasury shares, at cost, 5,407 shares held at December 31, 2019 and December 31, 2018, respectively	(49,998)	(49,998)
Additional paid-in capital	434,391	433,756
Accumulated deficit	(391,215)	(357,989)
Accumulated other comprehensive loss	(22,806)	(23,416)
Total shareholders’ (deficit) equity	(29,199)	2,780
Total liabilities and shareholders’ (deficit) equity	$ 151,436	$ 190,300