Consolidated Condensed Balance Sheets (USD $) In Thousands, unless otherwise specified	Nov. 30, 2011	May 31, 2011
ASSETS
Cash and cash equivalents	$ 18,748	$ 14,078
Receivables, net of allowance of $4,719 and $4,222	145,434	143,120
Inventory	22,459	21,335
Deferred income taxes	3,543	3,795
Prepaid expenses and other current assets	6,272	7,946
Total Current Assets	196,456	190,274
Property, plant and equipment, net	61,088	58,567
Intangible assets, net of accumulated amortization of $4,144 and $3,218	15,863	14,819
Goodwill	86,752	89,520
Other assets, net	3,618	2,189
Deferred income taxes	149	117
Total Assets	363,926	355,486
LIABILITIES AND STOCKHOLDERS' EQUITY
Current portion of long-term debt	54	212
Accounts payable	17,944	24,371
Other accrued liabilities	33,554	32,511
Income taxes payable	1,963	2,641
Deferred income taxes	24	6
Total Current Liabilities	53,539	59,741
Deferred income taxes	11,386	10,431
Long-term debt	73,566	75,868
Total Liabilities	138,491	146,040
Commitments And Contingencies
Stockholders' Equity:
Preferred stock, 500,000 shares authorized, none issued
Common stock, par value $0.30 per share, 30,000,000 shares authorized; 19,765,558 and 19,571,138 shares issued	5,929	5,871
Non-controlling interest	5,014	4,983
Additional paid-in capital	80,851	77,867
Retained earnings	136,274	119,138
Accumulated other comprehensive (loss) income	(1,289)	2,931
Treasury stock at cost, 89,569 and 89,569 shares	(1,344)	(1,344)
Total Stockholders' Equity	225,435	209,446
Total Liabilities And Stockholders' Equity	$ 363,926	$ 355,486