Segment Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2022	Apr. 30, 2021	Apr. 30, 2020
Segment Reporting Information [Line Items]
Revenues	$ 127,553	$ 111,408	$ 115,466
Operating income/(loss)	13,156	4,361	6,048
Capital expenditures	970	678	420
Capitalized Software	0	620	3,170
Depreciation and amortization	4,138	5,610	8,103
Interest income	391	409	1,524
Earnings/(loss) before income taxes	13,837	8,848	6,798
Total Consolidated Assets	192,835	177,157
Supply Chain Management
Segment Reporting Information [Line Items]
Revenues	104,288	90,268	95,018
Operating income/(loss)	29,164	18,922	19,612
Capital expenditures	704	266	156
Capitalized Software	0	620	3,170
Depreciation and amortization	3,755	5,223	7,727
Interest income	27	71	829
Earnings/(loss) before income taxes	28,722	19,119	19,855
Total Consolidated Assets	111,351	110,652
IT Consulting
Segment Reporting Information [Line Items]
Revenues	21,032	19,036	17,997
Operating income/(loss)	1,601	456	332
Capital expenditures	0	0	0
Capitalized Software	0	0	0
Depreciation and amortization	0	2	5
Interest income	0	0	0
Earnings/(loss) before income taxes	1,601	454	332
Total Consolidated Assets	5,101	4,658
Other
Segment Reporting Information [Line Items]
Revenues	2,233	2,104	2,451
Operating income/(loss)	(17,609)	(15,017)	(13,896)
Capital expenditures	266	412	264
Capitalized Software	0	0	0
Depreciation and amortization	383	385	371
Interest income	364	338	695
Earnings/(loss) before income taxes	(16,486)	(10,725)	$ (13,389)
Total Consolidated Assets	$ 76,383	$ 61,847