INFORMATION ABOUT THE COMPANY’S OPERATIONS IN DIFFERENT INDUSTRY SEGMENTS (Details) - USD ($) $ in Thousands		3 Months Ended
		Jul. 31, 2017		Jul. 31, 2016		Apr. 30, 2017
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	[1]	$ 11,326		$ 12,208
Net income (loss) from operations	[1]	1,448		630
Provision (benefit) for income taxes	[1]	766		337
Interest expense (income), net	[1]	13		224
Depreciation and amortization	[1]	321		367
EBITDA	[1],[2]	2,548		1,558
Capital expenditures	[1]	10		39
Total assets		105,808	[1]	114,275	[1]	$ 106,676
Real Estate
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	[1]	2,747		4,370
Net income (loss) from operations	[1]	180		247
Provision (benefit) for income taxes	[1]	134		145
Interest expense (income), net	[1]	524		647
Depreciation and amortization	[1]	18		24
EBITDA	[1],[2]	856		1,063
Capital expenditures	[1]	0		0
Total assets	[1]	75,387		80,250
Fulfillment Services [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	[1]	8,561		7,828
Net income (loss) from operations	[1]	1,040		(42)
Provision (benefit) for income taxes	[1]	536		(25)
Interest expense (income), net	[1]	303		269
Depreciation and amortization	[1]	303		343
EBITDA	[1],[2]	2,182		545
Capital expenditures	[1]	10		39
Total assets	[1]	26,485		28,689
Corporate and Other [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	[1]	18		10
Net income (loss) from operations	[1]	228		425
Provision (benefit) for income taxes	[1]	96		217
Interest expense (income), net	[1]	(814)		(692)
Depreciation and amortization	[1]	0		0
EBITDA	[1],[2]	(490)		(50)
Capital expenditures	[1]	0		0
Total assets	[1]	$ 3,936		$ 5,336

[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 (loss) 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.