Note 13 - Segment Information (Detail) - Segment Information (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jul. 01, 2011	Jun. 30, 2012	Jul. 01, 2011	Dec. 31, 2011
Net revenues	$ 24,540		$ 39,347
Income (loss) from operations	2,719	(2,984)	619	(5,404)
Total assets	452,146		452,146		368,677
Accounts receivable	24,654		24,654		4,660
Property and equipment, net	75,873		75,873		21,060
Sports-Related [Member]
Net revenues			1,596
Income (loss) from operations			(3,385)
Total assets	6,510		6,510
Accounts receivable	189		189
Property and equipment, net	5,885		5,885
Oilfield Service Business [Member]
Net revenues			37,751
Income (loss) from operations			9,039
Total assets	182,005		182,005
Accounts receivable	24,465		24,465
Property and equipment, net	69,988		69,988
Corporate [Member]
Income (loss) from operations			(5,035)
Total assets	$ 263,631		$ 263,631