Stock Based Compensation (Details 1) shares in Thousands	3 Months Ended
	Nov. 30, 2015 $ / shares shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number of Shares	772
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	5 years 9 months 18 days
Options Exercisable, Number of Shares	710
Range One [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Range Limit | $ / shares	$ 1.10
Options Outstanding, Number of Shares	250
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	6 years 1 month 6 days
Options Exercisable, Number of Shares	188
Range Two [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Range Limit | $ / shares	$ 1.86
Options Outstanding, Number of Shares	522
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	5 years 7 months 6 days
Options Exercisable, Number of Shares	522