Segment Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Apr. 30, 2014	Jan. 31, 2014	Oct. 31, 2013	Jul. 31, 2013	Apr. 30, 2013	Jan. 31, 2013	Oct. 31, 2012	Jul. 31, 2012	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2012
Segment Reporting Information [Line Items]
Revenues	$ 25,925	$ 24,427	$ 26,931	$ 23,318	$ 25,214	$ 23,076	$ 26,263	$ 25,914	$ 100,601	$ 100,467	$ 102,636
Operating income (loss)	3,211	3,539	5,392	2,383	3,536	2,291	4,236	3,721	14,525	13,784	16,168
Capital expenditures									255	736	372
Capitalized Software									2,949	3,418	2,731
Depreciation and amortization									2,605	4,153	4,302
Interest income									935	1,140	1,288
Earnings (loss) before income taxes									15,897	15,525	17,271
Total Consolidated Assets	131,220				113,070				131,220	113,070	116,553
Enterprise Resource Planning
Segment Reporting Information [Line Items]
Revenues									11,517	12,825	13,651
Operating income (loss)									(7,014)	(6,657)	(6,518)
Capital expenditures									125	513	162
Depreciation and amortization									887	916	1,046
Interest income									343	452	363
Earnings (loss) before income taxes									(3,830)	(2,976)	(3,804)
Total Consolidated Assets	39,283				36,985				39,283	36,985	33,594
Supply Chain Management
Segment Reporting Information [Line Items]
Revenues									64,331	62,410	63,610
Operating income (loss)									19,246	18,685	20,838
Capital expenditures									118	196	205
Capitalized Software									2,949	3,418	2,731
Depreciation and amortization									1,706	3,228	3,252
Interest income									592	688	925
Earnings (loss) before income taxes									17,541	16,897	19,290
Total Consolidated Assets	86,854				70,982				86,854	70,982	77,288
IT Consulting
Segment Reporting Information [Line Items]
Revenues									24,753	25,232	25,375
Operating income (loss)									2,293	1,756	1,848
Capital expenditures									12	27	5
Depreciation and amortization									12	9	4
Earnings (loss) before income taxes									2,186	1,604	1,785
Total Consolidated Assets	5,083				5,103				5,083	5,103	5,671
Operating Segments
Segment Reporting Information [Line Items]
Operating income (loss)									14,525	13,784	16,168
Operating Segments | Enterprise Resource Planning
Segment Reporting Information [Line Items]
Operating income (loss)									(5,132)	(4,741)	(4,947)
Operating Segments | Supply Chain Management
Segment Reporting Information [Line Items]
Operating income (loss)									17,468	16,881	19,335
Operating Segments | IT Consulting
Segment Reporting Information [Line Items]
Operating income (loss)									2,189	1,644	1,780
Intersegment Eliminations | Enterprise Resource Planning
Segment Reporting Information [Line Items]
Operating income (loss)									(1,882)	(1,916)	(1,571)
Intersegment Eliminations | Supply Chain Management
Segment Reporting Information [Line Items]
Operating income (loss)									1,778	1,804	1,503
Intersegment Eliminations | IT Consulting
Segment Reporting Information [Line Items]
Operating income (loss)									$ 104	$ 112	$ 68