Significant Accounting Policies - Schedule of Calculation of Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2025	Oct. 31, 2024
Basic net income (loss) per share computation:
Net income (loss) attributable to common stockholders	$ 268	$ 728	$ (169)	$ 2,041
Weighted Average common shares - basic (in shares)	13,791,913	13,593,766	13,758,715	13,593,766
Basic net income (loss) per share (in dollars per share)	$ 0.02	$ 0.05	$ (0.01)	$ 0.15
Diluted net income (loss) per share computation:
Net income (loss) attributable to common stockholders	$ 268	$ 728	$ (169)	$ 2,041
Weighted Average common shares (in shares)	13,791,913	13,593,766	13,758,715	13,593,766
Incremental shares from assumed exercise of stock options (in shares)	665,924	423,187	0	435,900
Adjusted weighted average share – diluted (in shares)	14,457,837	14,016,953	13,758,715	14,029,666
Diluted net income (loss) per share (in dollars per share)	$ 0.02	$ 0.05	$ (0.01)	$ 0.15