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Note 10 - Equity Method Investment (Detail) - TEL’s Summarized Financial Information (Transport Enterprise Leasing, LLC [Member], USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011
Transport Enterprise Leasing, LLC [Member] |  |
Current Assets | $ 6,898 | $ 3,805
Non-current Assets | 21,150 | 11,255
Current Liabilities | 9,988 | 5,136
Non-current Liabilities | 13,670 | 8,739
Total Equity | 4,390 | 1,185
Revenue | 53,459 | 31,070
Operating Expenses | 48,382 | 29,426
Operating Income | 5,077 | 1,644
Net Income | $ 3,850 | $ 1,331

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