CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Feb. 28, 2015		Feb. 28, 2014		Feb. 28, 2015		Feb. 28, 2014
Revenues:
Rentals and leases	$ 30,252		$ 32,485		$ 97,610		$ 103,347
Sales of equipment and other revenues	26,090		29,531		80,306		76,713
Total revenues	56,342	[1]	62,016	[1]	177,916	[1]	180,060	[1]
Operating expenses:
Depreciation of rental and lease equipment	13,844		14,361		42,429		42,975
Costs of rentals and leases, excluding depreciation	4,544		4,493		13,665		14,103
Costs of sales of equipment and other revenues	19,598		21,583		60,161		54,800
Selling, general and administrative expenses	14,692		14,394		44,311		43,299
Total operating expenses	52,678		54,831		160,566		155,177
Operating profit	3,664		7,185		17,350		24,883
Interest income, net	82		106		264		275
Other income	0		0		1,390		0
Income before income taxes	3,746		7,291		19,004		25,158
Income tax provision	1,321		2,754		7,013		9,343
Net income	$ 2,425		$ 4,537		$ 11,991		$ 15,815
Earnings per share:
Basic (in dollars per share)	$ 0.10		$ 0.19		$ 0.49		$ 0.65
Diluted (in dollars per share)	$ 0.10		$ 0.19		$ 0.49		$ 0.65
Shares used in per share calculation:
Basic (in shares)	24,377		24,334		24,355		24,320
Diluted (in shares)	24,377		24,367		24,355		24,349
Cash dividend declared per share (in dollars per share)	$ 0.20		$ 0.20		$ 0.60		$ 0.60

[1] Revenues by country are based on the shipping destination.