Segment Information (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Apr. 30, 2015	Jan. 31, 2015	Oct. 31, 2014	Jul. 31, 2014	Apr. 30, 2014	Jan. 31, 2014	Oct. 31, 2013	Jul. 31, 2013	Apr. 30, 2015	Apr. 30, 2014	Apr. 30, 2013
Segment Reporting Information [Line Items]
Revenues	$ 27,600	$ 25,839	$ 24,577	$ 24,857	$ 25,925	$ 24,427	$ 26,931	$ 23,318	$ 102,873	$ 100,601	$ 100,467
Operating income/(loss)	3,425	$ 2,375	$ 1,379	$ 2,163	3,211	$ 3,539	$ 5,392	$ 2,383	9,342	14,525	13,784
Capital expenditures									1,028	255	736
Capitalized software									2,747	2,949	3,418
Depreciation and amortization									5,833	2,605	4,153
Interest income									1,229	935	1,140
Earnings (loss) before income taxes									10,402	15,897	15,525
Total Consolidated Assets	134,266				131,220				134,266	131,220	113,070
Enterprise Resource Planning
Segment Reporting Information [Line Items]
Revenues									11,363	11,517	12,825
Operating income/(loss)									(7,412)	(7,014)	(6,657)
Capital expenditures									791	125	513
Depreciation and amortization									925	887	916
Interest income									421	343	452
Earnings (loss) before income taxes									(3,815)	(3,830)	(2,976)
Total Consolidated Assets	32,435				39,283				32,435	39,283	36,985
Supply Chain Management
Segment Reporting Information [Line Items]
Revenues									66,066	64,331	62,410
Operating income/(loss)									14,419	19,246	18,685
Capital expenditures									229	118	196
Capitalized software									2,747	2,949	3,418
Depreciation and amortization									4,896	1,706	3,228
Interest income									808	592	688
Earnings (loss) before income taxes									11,989	17,541	16,897
Total Consolidated Assets	97,101				86,854				97,101	86,854	70,982
IT Consulting
Segment Reporting Information [Line Items]
Revenues									25,444	24,753	25,232
Operating income/(loss)									2,335	2,293	1,756
Capital expenditures									8	12	27
Depreciation and amortization									12	12	9
Earnings (loss) before income taxes									2,228	2,186	1,604
Total Consolidated Assets	$ 4,730				$ 5,083				4,730	5,083	5,103
Operating Segments
Segment Reporting Information [Line Items]
Operating income/(loss)									9,342	14,525	13,784
Operating Segments | Enterprise Resource Planning
Segment Reporting Information [Line Items]
Operating income/(loss)									(5,285)	(5,132)	(4,741)
Operating Segments | Supply Chain Management
Segment Reporting Information [Line Items]
Operating income/(loss)									12,399	17,468	16,881
Operating Segments | IT Consulting
Segment Reporting Information [Line Items]
Operating income/(loss)									2,228	2,189	1,644
Intersegment Eliminations | Enterprise Resource Planning
Segment Reporting Information [Line Items]
Operating income/(loss)									(2,127)	(1,882)	(1,916)
Intersegment Eliminations | Supply Chain Management
Segment Reporting Information [Line Items]
Operating income/(loss)									2,020	1,778	1,804
Intersegment Eliminations | IT Consulting
Segment Reporting Information [Line Items]
Operating income/(loss)									$ 107	$ 104	$ 112