Segment Operating Profit or Loss (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jan. 31, 2013	Jan. 31, 2012	Jan. 31, 2013	Jan. 31, 2012
Segment Reporting Information [Line Items]
Revenues	$ 23,076	$ 25,397	$ 75,253	$ 74,704
Operating income (loss) before intersegment eliminations	2,291	3,293	10,248	11,604
Operating income (loss) after intersegment eliminations	2,291	3,293	10,248	11,604
Capital expenditures	25	35	546	257
Capitalized Software	836	689	2,647	1,955
Depreciation and amortization	1,033	1,071	3,118	3,248
Enterprise Resource Planning
Segment Reporting Information [Line Items]
Revenues	2,629	3,397	9,537	9,877
Operating income (loss) before intersegment eliminations	(1,376)	(1,340)	(3,556)	(3,547)
Intersegment eliminations	(456)	(397)	(1,452)	(1,176)
Operating income (loss) after intersegment eliminations	(1,832)	(1,737)	(5,008)	(4,723)
Capital expenditures	17	4	334	97
Depreciation and amortization	222	254	691	805
Collaborative Supply Chain Management
Segment Reporting Information [Line Items]
Revenues	14,868	15,616	46,673	46,297
Operating income (loss) before intersegment eliminations	3,446	4,166	12,577	13,784
Intersegment eliminations	426	378	1,369	1,128
Operating income (loss) after intersegment eliminations	3,872	4,544	13,946	14,912
Capital expenditures	8	31	185	155
Capitalized Software	836	689	2,647	1,955
Depreciation and amortization	809	816	2,421	2,440
IT Consulting
Segment Reporting Information [Line Items]
Revenues	5,579	6,384	19,043	18,530
Operating income (loss) before intersegment eliminations	221	467	1,227	1,367
Intersegment eliminations	30	19	83	48
Operating income (loss) after intersegment eliminations	251	486	1,310	1,415
Capital expenditures			27	5
Depreciation and amortization	$ 2	$ 1	$ 6	$ 3