Accounts Receivable, Short-Term and Long-Term Notes Receivable (Tables)

9 Months Ended

Sep. 30, 2015

Receivables [Abstract]

Schedule of Accounts, Notes, Loans and Financing Receivable

	September 30, 2015
	Gross Notes Receivable				Reserve				Net Notes Receivable
	Current		Long-Term		Current		Long-Term		Current		Long-Term
Customer Notes Receivable	$	739,788	$	822,319	$	290,369	$	370,377	$	449,419	$	451,942
Accounts Receivable	$	793,830			$	272,188			$	521,642

	December 31, 2014
	Gross Notes Receivable				Reserve				Net Notes Receivable
	Current		Long-Term		Current		Long-Term		Current		Long-Term
Customer Notes Receivable	$	760,417	$	1,028,805	$	286,571	$	349,954	$	473,846	$	678,851
Accounts Receivable	$	344,313			$	188,527			$	155,786

Allowance for doubtful accounts related to notes receivable and accounts receivable

The roll forward of the allowance for doubtful accounts related to notes receivable and accounts receivable is as follows:

	Notes Receivable				Accounts Receivable
	Current		Long-Term		Current		Long-Term
Balance at December 31, 2014	$	286,571	$	349,954	$	188,527	$	-
Incremental Provision	$	358,450	$	364,370	$	418,056	$	-
Charge offs	$	(354,652)	$	(343,947)	$	(334,395)	$	-
Balance at September 30, 2015	$	290,369	$	370,377	$	272,188	$	-