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Other Accrued Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2013
Payables and Accruals [Abstract] |
Accrued Liabilities |
|  | 2013 |  | 2012
Customer rebates |  | $ | 3,277,416 |  |  | $ | 3,404,720 |
Remediation liability |  |  | 39,044 |  |  |  | 123,587 |
Pension liability |  |  | 183,034 |  |  |  | 900,291 |
Other |  |  | 1,873,695 |  |  |  | 1,732,940 |
|  | $ | 5,373,188 |  |  | $ | 6,161,538 |

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