Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Jan. 31, 2012	Jan. 31, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 488	$ 1,514
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,978	4,534
Non-cash credits and charges:
Pension accrual	144	292
Provision for (recoveries of) doubtful accounts	(568)	(267)
Loss on disposition of assets, net	67	15
Changes in assets and liabilities:
Receivables	6,613	7,572
Income taxes receivable	(209)	203
Real estate inventory and investment assets	(420)	219
Intangible and other assets	570	861
Accounts payable and accrued expenses	(6,761)	(5,926)
Deferred income taxes and other long-term liabilities	1	(849)
Total adjustments	3,415	6,654
Net cash provided by operating activities	3,903	8,168
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures - property, plant and equipment	(761)	(724)
Proceeds from the disposition of assets	12	0
Net cash used in investing activities	(749)	(724)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from debt financing	8,277	27,273
Principal debt payments	(10,306)	(28,527)
Net cash used in financing activities	(2,029)	(1,254)
INCREASE IN CASH AND CASH EQUIVALENTS	1,125	6,190
CASH AND CASH EQUIVALENTS, beginning of period	25,756	25,531
CASH AND CASH EQUIVALENTS, end of period	26,881	31,721
SUPPLEMENTAL CASH FLOW INFORMATION:
Interest paid - net of amounts capitalized	1,024	1,416
Income taxes paid - net of refunds	173	292
Non-cash transactions:
Reclassification to investment assets from receivables	$ 451	$ 0