Segment Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Jul. 31, 2017	Jul. 31, 2016
Segment Reporting Information [Line Items]
Revenues	$ 26,886	$ 27,433
Operating income(loss)	3,622	1,646
Capital expenditures	133	144
Capitalized Software	1,287	636
Depreciation and amortization	1,385	1,407
Earnings (loss) before income taxes	4,221	2,306
Enterprise Resource Planning
Segment Reporting Information [Line Items]
Revenues	2,806	3,008
Operating income(loss)	(2,471)	(2,322)
Capital expenditures	114	42
Depreciation and amortization	56	144
Earnings (loss) before income taxes	(1,077)	(729)
Collaborative Supply Chain Management
Segment Reporting Information [Line Items]
Revenues	19,711	19,411
Operating income(loss)	5,860	3,748
Capital expenditures	17	102
Capitalized Software	1,287	636
Depreciation and amortization	1,328	1,261
Earnings (loss) before income taxes	5,065	2,825
IT Consulting
Segment Reporting Information [Line Items]
Revenues	4,369	5,014
Operating income(loss)	233	220
Capital expenditures	2
Depreciation and amortization	1	2
Earnings (loss) before income taxes	233	210
Operating Segments
Segment Reporting Information [Line Items]
Operating income(loss)	3,622	1,646
Operating Segments | Enterprise Resource Planning
Segment Reporting Information [Line Items]
Operating income(loss)	(1,515)	(1,416)
Operating Segments | Collaborative Supply Chain Management
Segment Reporting Information [Line Items]
Operating income(loss)	4,904	2,852
Operating Segments | IT Consulting
Segment Reporting Information [Line Items]
Operating income(loss)	233	210
Intersegment Eliminations | Enterprise Resource Planning
Segment Reporting Information [Line Items]
Operating income(loss)	(956)	(906)
Intersegment Eliminations | Collaborative Supply Chain Management
Segment Reporting Information [Line Items]
Operating income(loss)	$ 956	896
Intersegment Eliminations | IT Consulting
Segment Reporting Information [Line Items]
Operating income(loss)		$ 10