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Other Accrued Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2016
Payables and Accruals [Abstract] |
Accrued Liabilities |
|  | December 31,
|  | 2016 |  | 2015
Customer rebates |  | $ | 2,789,003 |  |  | $ | 3,168,756 |
Remediation liability |  |  | 57,197 |  |  |  | 80,947 |
Pension liability |  |  | 205,071 |  |  |  | 359,216 |
Other |  |  | 2,619,819 |  |  |  | 2,052,074 |
|  | $ | 5,671,090 |  |  | $ | 5,660,993 |

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