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Major Customers (Tables) | 12 Months Ended
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Dec. 31, 2013
Revenue, Net [Abstract] |
Major customers | The following table presents sales revenue for the above-mentioned customers for the years ended December 31:
| 2013 |  | 2012
Navistar product sales | $ | 46,384,000 |  |  | $ | 55,002,000 |
Navistar tooling sales | 972,000 |  |  | 8,301,000 |
Total Navistar sales | 47,356,000 |  |  | 63,303,000 |
PACCAR product sales | 42,784,000 |  |  | 55,524,000 |
PACCAR tooling sales | 7,370,000 |  |  | 1,728,000 |
Total PACCAR sales | 50,154,000 |  |  | 57,252,000 |
Other product sales | 44,928,000 |  |  | 39,172,000 |
Other tooling sales | 1,687,000 |  |  | 2,723,000 |
Total other sales | 46,615,000 |  |  | 41,895,000 |
Total product sales | 134,096,000 |  |  | 149,698,000 |
Total tooling sales | 10,029,000 |  |  | 12,752,000 |
Total sales | $ | 144,125,000 |  |  | $ | 162,450,000 |

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