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Note 7 - Long-Lived Assets (Detail) - Estimated Aggregate Future Amortization Expense (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Sports-Related [Member]
 
2012 (remaining six months) $ 24
2013 47
2014 47
2015 47
2016 27
192
Oilfield Service Business [Member]
 
2012 (remaining six months) 5,102
2013 8,534
2014 6,565
2015 5,267
2016 4,216
Thereafter 15,137
$ 44,821