Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Oct. 31, 2011	Oct. 31, 2010
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 804	$ 233
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	2,703	3,096
Non-cash credits and charges:
Pension accrual	57	369
Provision for (recoveries of) doubtful accounts	8	(236)
Loss on disposition of assets, net	67	8
Changes in assets and liabilities:
Receivables	4,127	5,577
Income taxes receivable	(75)	140
Real estate inventory and investment assets	(303)	345
Intangible and other assets	256	718
Accounts payable and accrued expenses	(591)	(3,934)
Deferred income taxes and other long-term liabilities	577	(73)
Total adjustments	6,826	6,010
Net cash provided by operating activities	7,630	6,243
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures - property, plant and equipment	(697)	(298)
Proceeds from the disposition of assets	12	0
Net cash used in investing activities	(685)	(298)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from debt financing	7,704	17,938
Principal debt payments	(9,034)	(12,349)
Net cash provided by (used in) financing activities	(1,330)	5,589
INCREASE IN CASH AND CASH EQUIVALENTS	5,615	11,534
CASH AND CASH EQUIVALENTS, beginning of period	25,756	25,531
CASH AND CASH EQUIVALENTS, end of period	31,371	37,065
SUPPLEMENTAL CASH FLOW INFORMATION:
Interest paid - net of amounts capitalized	694	957
Income taxes paid - net of refunds	$ 132	$ 165