Commitments and contingencies (Tables)

12 Months Ended

Mar. 31, 2020

Commitments and contingencies

Schedule of variable lease components

	Year Ended
	March 31, 2020
Lease cost
Finance lease costs:
Amortization of right-to-use asset	$	1,274
Interest on lease liabilities		1,185
Operating lease costs		885
Total lease cost	$	3,344

Summary of the maturity of company's lease liabilities

	March 31, 2020
	Operating leases		Financing  lease		Total
2021	$	873	$	2,411	$	3,284
2022		586		2,483		3,069
2023		596		2,558		3,154
2024		605		2,634		3,239
2025		614		2,714		3,328
Thereafter		2,791		43,685		46,476
Total lease payments		6,065		56,485		62,550
Less: interest		1,455		29,107		30,562
Total lease liabilities	$	4,610	$	27,378	$	31,988

Schedule of future annual minimum lease payment commitments

2020	$	2,062
2021		2,901
2022		2,493
2023		2,568
2024		2,645
2025		2,725
Thereafter		12,770
	$	28,164

Schedule of additional information related to leases

	March 31, 2020
Leases
Right-to-use operating lease asset	$	4,425
Right-to-use finance lease asset		46,925
Total lease assets	$	51,350
Operating lease liabilities, current	$	873
Finance lease liabilities, current		2,411
Operating lease liabilities, non-current		3,737
Finance lease liabilities, non-current		24,967
Total lease liabilities	$	31,988
Other information
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	747
Operating cash flows from finance leases	$	1,185
Financing cash flows from finance leases	$	59
Right-to-use asset obtained in exchange for new operating lease liabilities	$	5,152
Right-to-use asset obtained in exchange for new financing lease liabilities	$	48,224
Variable lease costs	$	—
Short term lease costs	$	—
Weighted-average remaining lease term-operating leases		8.7 years
Weighted-average remaining lease term-financing leases		19.3 years
Weighted-average discount rate-operating leases		7	%
Weighted-average discount rate-financing leases		8	%