Product Warranty Provisions (Tables)

12 Months Ended

Dec. 31, 2012

Product Warranty Provisions [Abstract]

Schedule Of Accrued Warranty

	December 31, 2012		December 31, 2011
Warranty accrual, beginning of the fiscal year	$	691,832	$	469,837
Warranty expense incurred		650,367		762,872
Payments made		(688,726)		(540,877)
Warranty accrual, end of the fiscal year	$	653,473	$	691,832