Subsequent events (Additional Information) (Details Textual) - At-the-market Offering [Member] - USD ($) $ in Thousands		12 Months Ended
	Jun. 30, 2020	Mar. 31, 2024	Mar. 31, 2023
Net proceeds from shares issued under the at-the-market (ATM) program (Shares)	0	0	54,108
Proceeds from Issuance of Common Stock, Net			$ 304