Cash Flow Information (Tables)

6 Months Ended

Jan. 31, 2013

Supplemental Cash Flow Elements [Abstract]

Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]

Supplemental disclosure:	Six Months Ended
	January 31
	2013		2012
Interest paid, net of capitalized interest of $4,458 (2013)
and $1,269 (2012)	$	224,568	$	302,764
Income taxes paid (refunded)	$	435,057	$	(24,589	)