Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Aug. 31, 2013		Aug. 31, 2012
NET SALES	$ 233,082		$ 174,523
Cost of products sold	202,416		159,323
GROSS PROFIT	30,666		15,200
Selling, general and administrative	18,553		17,557
Interest expense	17,371		7,777
Other income, net	(5,857)		(2,599)
INCOME (LOSS) BEFORE INCOME TAXES FROM CONTINUING OPERATIONS	599		(7,535)
Income taxes (benefit)	170		(139)
NET INCOME (LOSS) FROM CONTINUING OPERATIONS	429		(7,396)
NET INCOME FROM DISCONTINUED OPERATIONS	0		4,738
NET INCOME (LOSS)	$ 429		$ (2,658)
NET INCOME (LOSS) PER SHARE FROM CONTINUING OPERATIONS:
Basic (in USD per share)	$ 0.02		$ (0.26)
Diluted (in USD per share)	$ 0.01		$ (0.26)
NET INCOME PER SHARE FROM DISCONTINUED OPERATIONS:
Basic (in USD per share)	$ 0.00		$ 0.18
Diluted (in USD per share)	$ 0.00		$ 0.18
NET INCOME (LOSS) PER SHARE:
Basic (in USD per share)	$ 0.02		$ (0.08)
Diluted (in USD per share)	$ 0.01		$ (0.08)
AVERAGE SHARES OUTSTANDING
Basic (in shares)	28,578		27,998
Diluted (in shares)	29,054	[1]	27,998	[1]

[1] Shares excluded due to antidilutive effect of stock options, restricted shares and awards