Other Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2015

Payables and Accruals [Abstract]

Accrued Liabilities

	December 31,
	2015		2014
Customer rebates	$	3,168,756	$	4,128,082
Remediation liability		80,947		265,876
Pension liability		359,216		219,842
Other		2,052,074		3,346,368
	$	5,660,993	$	7,960,168