CONDENSED CONSOLIDATED STATEMENTS OF LOSS AND COMPREHENSIVE LOSS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Jul. 31, 2024	Jul. 31, 2023
Income Statement [Abstract]
Revenues	$ 40,173	$ 37,726
Cost of revenues	34,460	33,626
Gross profit	5,713	4,100
Operating expenses:
Selling, general and administrative	8,169	6,263
Total operating expenses	8,169	6,263
Operating loss	(2,456)	(2,163)
Interest expense	(2,454)	(825)
Other income (expense), net	(624)	258
Net loss before income taxes	(5,534)	(2,730)
Income tax benefit	0	(608)
Net loss	(5,534)	(2,122)
Comprehensive loss	$ (5,534)	$ (2,122)
Net loss per share:
Basic	$ (0.09)	$ (0.03)
Diluted	$ (0.09)	$ (0.03)
Weighted average common shares outstanding:
Basic	63,639	62,838
Diluted	63,639	62,838