INFORMATION ABOUT THE COMPANY'S OPERATIONS IN DIFFERENT INDUSTRY SEGMENTS: (Details) - USD ($) $ in Thousands		12 Months Ended
		Apr. 30, 2015	Apr. 30, 2014
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	[1]	$ 49,790	$ 62,197
Net income (loss)		(3,584)	(647)
Provision (benefit) for income taxes		(2,132)	(567)
Interest expense (income), net		1,615	1,721
Depreciation and amortization		3,264	3,190
Impairment of assets		2,580	686
EBITDA	[2]	1,743	4,383
Total assets excluding assets of discontinued operations		137,040	143,768
Total liabilities excluding liabilities of discontinued operations		45,113	43,549
Capital expenditures - property, plant and equipment		(1,127)	(1,259)
Fulfillment Services [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	[1]	43,684	58,479
Net income (loss)		(1,630)	1,689
Provision (benefit) for income taxes		(877)	697
Interest expense (income), net		700	730
Depreciation and amortization		2,999	3,506
Impairment of assets		771	0
EBITDA	[2]	1,963	6,622
Total assets excluding assets of discontinued operations		59,743	58,672
Total liabilities excluding liabilities of discontinued operations		36,245	35,682
Capital expenditures - property, plant and equipment		1,127	1,217
Real Estate Operations [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	[1]	6,366	4,000
Net income (loss)		(3,367)	(3,838)
Provision (benefit) for income taxes		(1,977)	(2,103)
Interest expense (income), net		2,730	2,740
Depreciation and amortization		91	80
Impairment of assets		1,809	686
EBITDA	[2]	(714)	(2,435)
Total assets excluding assets of discontinued operations		82,187	87,508
Total liabilities excluding liabilities of discontinued operations		37,744	43,521
Capital expenditures - property, plant and equipment		0	42
Corporate and Other [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	[1]	(260)	(282)
Net income (loss)		1,413	1,502
Provision (benefit) for income taxes		722	839
Interest expense (income), net		(1,815)	(1,749)
Depreciation and amortization		174	(396)
Impairment of assets		0	0
EBITDA	[2]	494	196
Total assets excluding assets of discontinued operations		(4,890)	(2,412)
Total liabilities excluding liabilities of discontinued operations		(28,876)	(35,654)
Capital expenditures - property, plant and equipment		$ 0	$ 0

[1] Revenue information provided for each segment includes amounts grouped as Other in the accompanying statements of operations. Corporate revenue is net of an intercompany revenue elimination.

[2] The Company uses EBITDA (which the Company defines as income before net interest expense, income taxes, depreciation and amortization, and non-cash impairment charges) in addition to net income (loss) as a key measure of profit or loss for segment performance and evaluation purposes.