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OTHER INCOME (Tables) | 6 Months Ended
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Jun. 30, 2016
Other Income and Expenses [Abstract] |
Interest and Other Income [Table Text Block] | Other income consisted of the following (amounts in thousands):
| Three months ended |  | Six months ended
| June 30, |  | June 30,
| 2016 |  | 2015 |  | 2016 |  | 2015
Gain on sale of assets | $ | — |  |  | $ | 58 |  |  | $ | 2,342 |  |  | $ | 57 |
Wheels India Limited equity income | 1,152 |  |  | 867 |  |  | 1,649 |  |  | 860 |
Interest income | 842 |  |  | 956 |  |  | 1,253 |  |  | 1,564 |
Building rental income | 609 |  |  | 258 |  |  | 971 |  |  | 498 |
Discount amortization on prepaid royalty | 320 |  |  | 472 |  |  | 779 |  |  | 1,083 |
Other income (expense) | 126 |  |  | 648 |  |  | (40 | ) |  | 1,514 |
| $ | 3,049 |  |  | $ | 3,259 |  |  | $ | 6,954 |  |  | $ | 5,576 |

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- Definition Tabular disclosure of interest income and income classified as other. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_OtherIncomeAndExpensesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration