Fair Value of Financial Instruments (Details) - USD ($)	Aug. 31, 2015	Aug. 31, 2014
Marketable securities	$ 0	$ 73,000
Liability for short sales of trading securities	(1,781,000)	(642,000)
Fair Value, Inputs, Level 1 [Member]
Marketable securities	0	73,000
Liability for short sales of trading securities	(1,781,000)	(642,000)
Fair Value, Inputs, Level 2 [Member]
Marketable securities	0	0
Liability for short sales of trading securities	0	0
Fair Value, Inputs, Level 3 [Member]
Marketable securities	0	0
Liability for short sales of trading securities	$ 0	$ 0