Consolidated Statements of Cash Flows from Operations - USD ($) $ in Thousands		9 Months Ended
		Jan. 31, 2018	Jan. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss) from operations		$ (1,125)	$ 916
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	[1]	954	1,058
Impairment of real estate assets		0	150	[1]
Non-cash credits and charges:
Non-cash gain on settlement		(1,318)	0
Non-cash deferred revenue recognized		(61)	0
Provision for (recovery of) doubtful accounts		28	(5)
Stock-based compensation		136	99
Pension accrual		750	944
Changes in assets and liabilities:
Receivables		(567)	86
Real estate inventory and investment assets		(2,180)	4,958
Other assets		146	701
Accounts payable and accrued expenses		2,172	(1,490)
Taxes receivable and payable		(424)	(124)
Other liabilities and deferred revenue		(344)	(248)
Deferred income taxes		4,408	562
Accrued pension costs		(1,040)	0
Total adjustments		2,660	6,691
Net cash provided by operating activities		1,535	7,607
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures - property, plant and equipment	[1]	(130)	(63)
Net cash used in investing activities		(130)	(63)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from debt financing		638	340
Principal debt payments		0	(895)
Principal debt payments - related party		0	(10,798)
Net cash provided by (used in) financing activities		638	(11,353)
Increase (decrease) in cash and cash equivalents		2,043	(3,809)
Cash and cash equivalents, beginning of period		11,811	14,562
Cash and cash equivalents, end of period		13,854	10,753
SUPPLEMENTAL CASH FLOW INFORMATION:
Interest paid, net of amounts capitalized		42	314
Income taxes paid, net		$ 7	$ 4

[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.