CONDENSED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities:
Net (loss) income	$ (17,510)	$ 712
Adjustments to reconcile net loss to net cash used in operating activities:
Change in fair value of warrant liability	(2,587)	(13,224)
Share-based compensation	2,539	2,942
Depreciation and amortization	77	69
Non-cash lease expense		269
Changes in operating assets and liabilities:
Accounts receivable	(10,000)
Unbilled receivables	(538)	(2,061)
Prepaid expenses and other current assets	70	280
Accounts payable	2,117	3,938
Accrued liabilities	(2,303)	(553)
Deferred revenue	20,417	(1,468)
Operating lease liability	(3)	(15)
Net cash used in operating activities	(7,721)	(9,111)
Cash flows from investing activities:
Purchases of property and equipment	(8)	(644)
Purchases of short-term investments	(59,992)	(54,989)
Proceeds from maturity of short-term investments	74,993	60,109
Net cash provided by investing activities	14,993	4,476
Cash flows from financing activities:
Payment of RSU tax withholdings in exchange for common shares surrendered by RSU holders	(194)
Proceeds from exercise of stock options		124
Proceeds from issuance of common stock, net		3,136
Net cash (used in) provided by financing activities	(194)	3,260
Net increase (decrease) in cash and cash equivalents	7,078	(1,375)
Cash and cash equivalents at beginning of the period	8,543	12,331
Cash and cash equivalents at end of the period	15,621	10,956
Supplemental disclosures:
Income taxes paid		(8)
Operating lease right-of-use assets obtained in exchange for operating lease liabilities	$ 0	$ 8,689