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Property And Equipment, Net
12 Months Ended
May 31, 2012
Property And Equipment, Net [Abstract]  
Property And Equipment, Net
6. PROPERTY AND EQUIPMENT, NET
 
Property and equipment, net, consists of the following at May 31:
 
 
2012
 
2011
Furniture and equipment
 
$
40,524

 
$
38,715

Leasehold improvements
 
13,881

 
13,327

Construction in progress
 
282

 
126

Total cost
 
54,687

 
52,168

Less accumulated depreciation and amortization
 
(41,557
)
 
(37,949
)
Total, net
 
$
13,130

 
$
14,219


Changes in amounts included in accounts payable for purchase of property and equipment totaled $7, $(37) and $138, respectively, at May 31, 2012, 2011 and 2010.