Unaudited Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2020	Mar. 31, 2020
Current assets:
Cash and cash equivalents	$ 67,909	$ 24,699
Marketable securities	10,239	30,149
Accounts receivable, net	12,083	16,987
Inventory, net	14,176	18,975
Prepaid expenses and other current assets	4,634	2,959
Restricted cash	629	508
Total current assets	109,670	94,277
Marketable securities		5,046
Property, plant and equipment, net	9,547	8,565
Intangibles, net	9,964	3,550
Right-of-use assets	3,806	3,359
Goodwill	34,659	1,719
Restricted cash	5,604	5,657
Deferred tax assets	1,386	1,551
Other assets	411	385
Total assets	175,047	124,109
Current liabilities:
Accounts payable and accrued expenses	17,015	22,091
Lease liability, current portion	581	439
Derivative liabilities	6,730
Deferred revenue, current portion	15,683	18,430
Total current liabilities	40,009	40,960
Deferred revenue, long term portion	8,695	7,712
Lease liability, long term portion	3,329	3,000
Deferred tax liabilities	70	180
Other liabilities	26	38
Total liabilities	52,129	51,890
Commitments and Contingencies (Note 15)
Stockholders' equity:
Common stock	280	229
Additional paid-in capital	1,120,333	1,053,507
Treasury stock	(3,593)	(2,666)
Accumulated other comprehensive loss	(405)	(216)
Accumulated deficit	(993,697)	(978,635)
Total stockholders' equity	122,918	72,219
Total liabilities and stockholders' equity	$ 175,047	$ 124,109