Note 3 - Investment in Joint Ventures (Detail) - Condensed Financial Information of the Company's Non-Consolidated Equity Method Investment in ICP (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Net sales (a)	$ 58,938	$ 55,008	$ 116,991	$ 112,574
Cost of sales and expenses (b)	(59,307)	(59,633)	(116,232)	(117,042)
Net income (loss)	$ (369)	$ (4,625)	$ 759	$ (4,468)