Note 2 - Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners' Interests (Detail) - The following table summarizes the initial allocation of the purchase price for JBC and Myers (in thousands): (USD $) In Thousands, unless otherwise specified	12 Months Ended		12 Months Ended
Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2012 JBC [Member]	Dec. 31, 2012 Myers [Member]	Dec. 31, 2012 RLW [Member]
Assets acquired and liabilities assumed:
Current assets,			$ 8,839	$ 3,207	$ 43,053
Current liabilities			(5,708)	(2,464)	(31,953)
Working capital acquired			3,131	743	11,100
Property and equipment			2,018	708	11,212
Debt due to noncontrolling interest owner				(500)
Other			9
Total tangible net assets acquired at fair value			5,158	951	22,312
Goodwill			4,803	1,502	57,513
Total consideration			9,961	2,453	79,825
Fair value of noncontrolling owners' interest		(23,144)		(1,226)	(15,965)
Fair value of earn-out			(2,370)
Cash paid	$ 3,911		$ 7,591	$ 1,227	$ 63,860

Note 2 - Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners' Interests (Detail) - The following table summarizes the initial allocation of the purchase price for JBC and Myers (in thousands): (USD $)
In Thousands, unless otherwise specified

12 Months Ended

Dec. 31, 2011

Dec. 31, 2012

JBC [Member]

Dec. 31, 2012

Myers [Member]

Dec. 31, 2012

RLW [Member]

Assets acquired and liabilities assumed:

Current assets,

$ 8,839

$ 3,207