Stock Incentive Plan - Summary of Stock Options Under Stock Incentive Plan (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands			3 Months Ended
	Apr. 30, 2023	Jan. 31, 2023	Apr. 30, 2023
Share-Based Payment Arrangement [Abstract]
Number of Shares, Beginning Balance			530
Number of Shares, Forfeited or expired			(65)
Number of Shares, Ending Balance	465	530	465
Number of Shares, Exercisable	465		465
Weighted Average Exercise Price, Beginning Balance			$ 0.56
Weighted Average Exercise Price, Forfeited or expired			0.36
Weighted Average Exercise Price, Ending Balance	$ 0.59	$ 0.56	0.59
Weighted Average Exercise Price, Exercisable	$ 0.59		$ 0.59
Weighted Average Remaining Contractual Term, Outstanding	3 years 7 months 6 days	3 years 9 months 18 days
Weighted Average Remaining Contractual Term, Forfeited or expired			2 years 10 months 24 days
Weighted Average Remaining Contractual Term, Exercisable			3 years 7 months 6 days
Intrinsic Value of Outstanding Options, Beginning Balance			$ 773
Intrinsic Value of Outstanding Options, Ending Balance		$ 773