Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Aug. 31, 2012	Aug. 31, 2011
Revenues:
Rentals and leases	$ 33,665	$ 31,309
Sales of equipment and other revenues	24,836	27,341
Total revenues	58,501	58,650
Operating expenses:
Depreciation of rental and lease equipment	14,058	12,527
Costs of revenues other than depreciation of rental and lease equipment	19,576	21,610
Selling, general and administrative expenses	16,622	15,893
Total operating expenses	50,256	50,030
Operating profit	8,245	8,620
Gain on bargain purchase, net of deferred taxes		3,194
Interest income, net	146	99
Income before income taxes	8,391	11,913
Income tax provision	3,305	3,408
Net income	$ 5,086	$ 8,505
Earnings per share:
Basic	$ 0.21	$ 0.35
Diluted	$ 0.21	$ 0.35
Shares used in per share calculation:
Basic	23,993	23,981
Diluted	24,216	24,132
Cash paid per common share	$ 0.20	$ 0.20