Significant Accounting Policies - Schedule of Calculation of Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Jan. 31, 2025	Oct. 31, 2024	Jul. 31, 2024	Jan. 31, 2024	Oct. 31, 2023	Jul. 31, 2023	Jan. 31, 2025	Jan. 31, 2024
Basic net income (loss) per share computation:
Net income (loss) attributable to common stockholders	$ 4,495	$ 728	$ 1,313	$ (2,530)	$ (2,071)	$ (2,566)	$ 6,536	$ (7,167)
Weighted Average common shares - basic (in shares)	13,700,627			13,593,758			13,620,686	13,538,480
Basic net income (loss) per share (in dollars per share)	$ 0.33			$ (0.19)			$ 0.48	$ (0.53)
Diluted net income (loss) per share computation:
Net income (loss) attributable to common stockholders	$ 4,495			$ (2,530)			$ 6,536	$ (7,167)
Weighted Average common shares (in shares)	13,700,627			13,593,758			13,620,686	13,538,480
Incremental shares from assumed exercise of stock options (in shares)	664,277			0			512,026	0
Adjusted weighted average share – diluted (in shares)	14,364,904			13,593,758			14,132,712	13,538,480
Diluted net income (loss) per share (in dollars per share)	$ 0.31			$ (0.19)			$ 0.46	$ (0.53)