Product Warranty Provisions (Tables)

6 Months Ended

Jun. 30, 2013

Product Warranty Provisions [Abstract]

Schedule Of Accrued Warranty

	June 30, 2013		December 31, 2012
Warranty accrual, beginning of the fiscal period	$	653,473	$	691,832
Warranty expense incurred		25,984		650,367
Payments made		(143,359)		(688,726)
Warranty accrual, end of the fiscal period	$	536,098	$	653,473