CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Apr. 30, 2024	Apr. 30, 2023
Statement of Financial Position [Abstract]
Allowance for credit losses	$ 133	$ 125
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, authorized	20,000,000	20,000,000
Preferred stock, issued	0	0
Preferred stock, outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, authorized	100,000,000	100,000,000
Common stock, issued	14,701,280	14,447,149
Common stock, outstanding	12,797,865	13,233,151
Treasury stock, shares	1,903,415	1,213,998