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Note 2. Details of Consolidated Balance Sheet Accounts | 12 Months Ended
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Dec. 31, 2012
Supplemental Balance Sheet Disclosures [Text Block] | 2. Details of Consolidated Balance Sheet Accounts Prepaid expenses and other: As of December 31, prepaid expenses and other consisted of the following:
(In thousands) |  | 2012 |  |  | 2011 |
Tires in service |  | $ | 4,261 |  |  | $ | 3,736 |
License fees |  |  | 4,194 |  |  |  | 4,070 |
Parts and tires inventory |  |  | 3,067 |  |  |  | 3,340 |
Insurance premiums |  |  | 1,316 |  |  |  | 1,334 |
Other |  |  | 2,652 |  |  |  | 2,946 |
|  | $ | 15,490 |  |  | $ | 15,426 |
Accrued liabilities: As of December 31, accrued liabilities consisted of the following:
(In thousands) |  | 2012 |  |  | 2011 |
Accrued expenses |  | $ | 4,649 |  |  | $ | 6,616 |
Current income taxes |  |  | 4,032 |  |  |  | 661 |
Salaries and wages |  |  | 3,773 |  |  |  | 3,956 |
Vacation |  |  | 3,560 |  |  |  | 3,154 |
Other |  |  | 967 |  |  |  | 1,044 |
|  | $ | 16,981 |  |  | $ | 15,431 |

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- Definition The entire disclosure for supplemental balance sheet disclosures, including descriptions and amounts for assets, liabilities, and equity. + References No definition available. + Details
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