CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2021	Mar. 31, 2020
Current assets:
Cash and cash equivalents	$ 45,673	$ 3,923
Short-term investments	65,999	116,871
Trade accounts receivable, net	5,323	5,402
Inventories	22,011	20,501
Prepaid expenses and other current assets	4,870	3,775
Total current assets	143,876	150,472
Restricted cash	9,024	9,017
Property and equipment, net	38,530	40,165
Operating lease right-of-use assets	22,011	21,493
Intangible assets, net	619	625
Deferred income taxes	255	237
Other non-current assets	4,956	4,454
Total assets	219,271	226,463
Current liabilities:
Accounts payable	4,659	4,826
Accrued compensation and benefits	11,833	7,210
Accrued expenses and other current liabilities	13,889	15,490
Current portion of long-term debt	24,167
Current portion of operating lease liability	3,446	3,033
Current portion of finance lease obligation	835	598
Total current liabilities	58,829	31,157
Long-term debt, less current portion	137,936	153,024
Operating lease liability, less current portion	20,907	19,914
Finance lease obligation, less current portion	445	1,117
Deferred income taxes	1,824
Defined benefit pension plan obligation	6,896	6,353
7% Cumulative redeemable preference shares	21,475	20,425
Total liabilities	248,312	231,990
Commitments and contingencies
Shareholders' equity (deficit):
Ordinary shares (nil par value) 101,264,412 and 80,398,326 issued and outstanding at March 31, 2021 and March 31, 2020 respectively	540,813	459,931
Additional paid in capital	38,116	33,132
Accumulated other comprehensive loss	(16,065)	(15,155)
Accumulated deficit	(591,905)	(483,435)
Total shareholders' equity (deficit)	(29,041)	(5,527)
Total liabilities and shareholders' equity (deficit)	$ 219,271	$ 226,463