Other Accrued Liabilities

12 Months Ended

Dec. 31, 2014

Payables and Accruals [Abstract]

Other Accrued Liabilities

5.  Other Accrued Liabilities

Other current and long-term accrued liabilities consisted of:

December 31,	2014		2013
Customer rebates	$	4,128,082	$	3,092,971
Remediation liability		265,876		39,044
Pension liability		219,842		183,034
Other		3,346,368		2,058,159
	$	7,960,168	$	5,373,208