INFORMATION ABOUT THE COMPANY'S OPERATIONS IN DIFFERENT INDUSTRY SEGMENTS (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2015	Oct. 31, 2014
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	[1]	$ 11,221	$ 14,357	$ 20,796	$ 26,678
Net income (loss) from continuing operations	[1]	(676)	(97)	(1,855)	(733)
Provision (benefit) for income taxes	[1]	(430)	6	(1,155)	(403)
Interest expense (income), net	[1]	364	370	743	762
Depreciation and amortization	[1]	707	816	1,453	1,642
Impairment of assets				0	925	[1]
EBITDA	[1],[2]	(35)	1,095	(814)	2,193
Capital expenditures	[1]	189	178	271	555
Fulfillment Services [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	[1]	8,726	11,803	17,907	23,712
Net income (loss) from continuing operations	[1]	(506)	41	(1,282)	(297)
Provision (benefit) for income taxes	[1]	(297)	208	(753)	10
Interest expense (income), net	[1]	182	177	349	352
Depreciation and amortization	[1]	677	731	1,393	1,525
Impairment of assets			925		925	[1]
EBITDA	[1],[2]	56	1,157	(293)	2,515
Capital expenditures	[1]	189	178	271	555
Real Estate Operations [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	[1]	2,256	2,625	2,424	3,109
Net income (loss) from continuing operations	[1]	(591)	(543)	(1,357)	(1,297)
Provision (benefit) for income taxes	[1]	(347)	(411)	(801)	(865)
Interest expense (income), net	[1]	596	693	1,267	1,388
Depreciation and amortization	[1]	22	22	45	45
Impairment of assets	[1]				0
EBITDA	[1],[2]	(320)	(239)	(846)	(729)
Capital expenditures	[1]	0	0	0	0
Corporate and Other [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	[1]	239	(71)	465	(143)
Net income (loss) from continuing operations	[1]	421	405	784	861
Provision (benefit) for income taxes	[1]	214	209	399	452
Interest expense (income), net	[1]	(414)	(500)	(873)	(978)
Depreciation and amortization	[1]	8	63	15	72
Impairment of assets	[1]				0
EBITDA	[1],[2]	229	177	325	407
Capital expenditures	[1]	$ 0	$ 0	$ 0	$ 0

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

[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.