Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current Assets
Cash and cash equivalents	$ 9,598	$ 21,061
Short-term investments	0	51,790
Accounts receivable, net	620	8,560
Inventories	10,653	10,941
Interest receivable	0	26
Other current assets	7,084	9,205
Total Current Assets	27,955	101,583
Restricted cash	969	590
Inventories, net of current portion	7,594	0
Property and equipment, net	4,706	6,337
Goodwill	0	80,131
Other long term assets	2,489	203
Total Assets	74,779	239,307
Current Liabilities
Accounts payable	3,579	4,433
Accrued expenses	8,553	9,619
Deferred revenue – current portion	818	1,733
Contingent consideration – current portion	73	72
Deferred consideration - MST Acquisition	0	5,962
Total Current Liabilities	13,023	21,819
Long Term Liabilities
Deferred revenue – less current portion	27	109
Contingent consideration – less current portion	1,011	10,565
Notes payable, net of debt discount	0	28,937
Warrant liabilities	2,388	4,636
Net deferred tax liabilities	1,392	4,720
Other long term liabilities	1,403	0
Total Liabilities	19,244	70,786
Commitments and Contingencies (Note 21)
Stockholders’ Equity
Common stock $0.001 par value, 750,000,000 shares authorized at December 31, 2019 and December 31, 2018; 20,691,301 and 16,641,999 shares issued and outstanding at December 31, 2019 and December 31, 2018, respectively	21	17
Additional paid-in capital	720,484	676,572
Accumulated deficit	(663,600)	(509,406)
Accumulated other comprehensive (loss) income	(1,370)	1,338
Total Stockholders’ Equity	55,535	168,521
Total Liabilities and Stockholders’ Equity	74,779	239,307
Intellectual Property, Net
Current Assets
Intangible assets	28,596	39,716
In-Process Research and Development
Current Assets
Intangible assets	$ 2,470	$ 10,747