CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2020	Mar. 31, 2020
Current assets:
Cash and cash equivalents	$ 18,125	$ 3,923
Short-term investments	144,618	116,871
Trade accounts receivable, net	4,518	5,402
Inventories	22,798	20,501
Prepaid expenses and other current assets	5,851	3,775
Total current assets	195,910	150,472
Restricted cash	9,031	9,017
Property and equipment, net	39,912	40,165
Operating lease right-of-use assets	21,557	21,493
Intangible assets, net	614	625
Deferred income taxes	237	237
Other non-current assets	4,634	4,454
Total assets	271,895	226,463
Current liabilities:
Accounts payable	5,138	4,826
Accrued compensation and benefits	5,191	7,210
Accrued expenses and other current liabilities	17,410	15,490
Current portion of long-term debt	12,083
Current portion of operating lease liability	3,138	3,033
Current portion of finance lease obligation	577	598
Total current liabilities	43,537	31,157
Long-term debt, less current portion	145,326	153,024
Operating lease liability, less current portion	20,282	19,914
Finance lease obligation, less current portion	921	1,117
Defined benefit pension plan obligation	7,169	6,353
7% Cumulative redeemable preference shares	20,950	20,425
Total liabilities	238,185	231,990
Commitments and contingencies
Shareholders' equity (deficit):
Ordinary shares (nil par value) 100,965,451 and 80,398,326 issued and outstanding at September 30, 2020 and March 31, 2020 respectively	540,769	459,931
Additional paid in capital	35,416	33,132
Accumulated other comprehensive loss	(18,636)	(15,155)
Accumulated deficit	(523,839)	(483,435)
Total shareholders' equity (deficit)	33,710	(5,527)
Total liabilities and shareholders' equity (deficit)	$ 271,895	$ 226,463