Summary of Significant Accounting Policies, Summary of Changes in Fair Value of Warrants (Details) - USD ($) $ in Thousands		6 Months Ended
	Jul. 31, 2023	Jul. 31, 2023	Jul. 31, 2022
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Gain/loss due to change in fair value of warrants	$ 100	$ 884	$ 2,059
Level 3 [Member] | Public
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance		1,373
Issuance of warrants		0	0
Gain/loss due to change in fair value of warrants		(1,028)
Ending balance	345	345
Level 3 [Member] | Private
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance		1,208	10,709
Issuance of warrants		126	519
Exercise of warrants			(5,900)
Gain/loss due to change in fair value of warrants		(924)	(2,059)
Ending balance	$ 410	$ 410	$ 7,387