Other Accrued Liabilities

12 Months Ended

Dec. 31, 2012

Payables and Accruals [Abstract]

Other Accrued Liabilities

5.  Other Accrued Liabilities

Other current and long-term accrued liabilities consisted of:

	2012		2011
Customer rebates	$	3,404,720	$	2,747,352
Remediation liability		123,587		239,016
Pension liability		900,291		1,012,786
Other		1,732,940		943,676
	$	6,161,538	$	4,942,830