Leases - Summary of Future Minimum Lease Payments under Non-cancellable Operating Leases (Details) - USD ($)	Sep. 30, 2019	Mar. 31, 2019
Leases [Abstract]
2020 (remaining six months)	$ 1,076,000
2021	1,718,000
2022	890,000
2023	408,000
2024	40,000
Thereafter	8,000
Total future minimum lease payments	4,140,000
Present value adjustment	(1,893,000)
Operating lease, liability	$ 2,247,000	$ 0