Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Beginning balance, value at Sep. 30, 2020	$ 62	$ 186,852	$ (159,677)	$ 27,237
Balance at beginning, shares at Sep. 30, 2020	62,045,198
Purchase shares	$ 4	24,107
Purchase shares, shares	4,007,996
Commitment shares
Commitment shares, shares	78,213
Shares issued under Sales Agreement	$ 6	79,102		79,108
Shares issued under Sales Agreement, shares	5,634,576
Less: share issue costs		(2,438)		(2,438)
Shares issued pursuant to registered direct offering	$ 2	49,998		50,000
Shares issued pursuant to registered direct offering, shares	2,380,953
Less: share issue costs		(3,097)		(3,097)
Shares issued pursuant to exercise of stock options	$ 1	4,107		4,108
Shares issued pursuant to exercise of stock options, shares	1,421,529
Shares issued pursuant to exercise of warrants		1,466		1,466
Shares issued pusuant to exercise of warrants, shares	350,000
Share based compensation		8,231		8,231
Net loss			(37,909)	(37,909)
Ending balance, value at Sep. 30, 2021	$ 75	348,328	(197,586)	150,817
Balance at ending, shares at Sep. 30, 2021	75,918,465
Shares issued under Sales Agreement	$ 2	20,983		20,985
Shares issued under Sales Agreement, shares	1,623,813
Less: share issue costs		(723)		(723)
Shares issued pursuant to exercise of stock options	$ 1	1,010		1,011
Shares issued pursuant to exercise of stock options, shares	400,537
Share based compensation		18,379		18,379
Net loss			(47,978)	(47,978)
Ending balance, value at Sep. 30, 2022	$ 78	387,977	(245,564)	142,491
Balance at ending, shares at Sep. 30, 2022	77,942,815
Shares issued under 2023 purchase agreement Initial Commitment shares		845		845
Shares issued under 2023 purchase agreement Initial Commitment shares, shares	75,000
Purchase shares	$ 3	27,872		27,875
Purchase shares, shares	3,275,000
Commitment shares
Commitment shares, shares	13,943
Shares issued pursuant to exercise of stock options	$ 1	1,775		1,776
Shares issued pursuant to exercise of stock options, shares	759,753
Share based compensation		16,370		16,370
Net loss			(47,505)	(47,505)
Ending balance, value at Sep. 30, 2023	$ 82	$ 434,839	$ (293,069)	$ 141,852
Balance at ending, shares at Sep. 30, 2023	82,066,511