Warranty Reserve (Tables)

12 Months Ended

Dec. 31, 2014

Warranty Reserve.

Schedule of Product Warranty

	December 31, 2014			December 31, 2013
Beginning balance—January 1	$	1,608,131		$	2,671,409
Additions for ReliOn acquisition		233,528			—
Additions for current period deliveries		960,894			970,775
Reductions for payments made		(1,491,111	)		(2,034,053	)
Ending balance—December 31	$	1,311,442		$	1,608,131