Segment Information- Segment Operating Profit or Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2021
Segment Reporting Information [Line Items]
Revenue	$ 123,659	$ 127,553	$ 111,408
Operating income/(loss)	10,550	13,156	4,361
Capitalized software	4,188	970	678
Capital expenditures	0	0	620
Depreciation and amortization	3,161	4,138	5,610
Interest income	2,149	391	409
Earnings/(loss) before income taxes	12,886	13,837	8,848
Total Consolidated Assets	195,620	192,835
Supply Chain Management
Segment Reporting Information [Line Items]
Revenue	106,128	104,288	90,268
Operating income/(loss)	29,925	29,164	18,922
Capitalized software	1,813	704	266
Capital expenditures	0	0	620
Depreciation and amortization	2,665	3,755	5,223
Interest income	584	27	71
Earnings/(loss) before income taxes	30,288	28,722	19,119
Total Consolidated Assets	99,418	111,351
IT Consulting
Segment Reporting Information [Line Items]
Revenue	15,407	21,032	19,036
Operating income/(loss)	664	1,601	456
Capitalized software	0	0	0
Capital expenditures	0	0	0
Depreciation and amortization	0	0	2
Interest income	0	0	0
Earnings/(loss) before income taxes	665	1,601	454
Total Consolidated Assets	3,602	5,101
Other
Segment Reporting Information [Line Items]
Revenue	2,124	2,233	2,104
Operating income/(loss)	(20,039)	(17,609)	(15,017)
Capitalized software	2,375	266	412
Capital expenditures	0	0	0
Depreciation and amortization	496	383	385
Interest income	1,565	364	338
Earnings/(loss) before income taxes	(18,067)	(16,486)	$ (10,725)
Total Consolidated Assets	$ 92,600	$ 76,383