STOCKBASED COMPENSATION (Summary of Information for Options Outstanding and Exercisable by Exercise Price Range) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Aug. 31, 2014
Employees [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number outstanding	908,901
Outstanding, weighted average remaining contractual life, years	6 years 10 months 28 days
Outstanding, weighted average exercise price	$ 6.75
Outstanding, aggregate intrinsic value	$ 3,427
Number exercisable	786,328
Exercisable, weighted average remaining contractual life, years	6 years 6 months 29 days
Exercisable, weighted average exercise price	$ 6.27
Exercisable, aggregate intrinsic value	3,248
Nonemployees [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number outstanding	62,221
Outstanding, weighted average remaining contractual life, years	3 years 6 months 22 days
Outstanding, weighted average exercise price	$ 7.13
Outstanding, aggregate intrinsic value	187
Number exercisable	53,888
Exercisable, weighted average remaining contractual life, years	3 years 1 month 10 days
Exercisable, weighted average exercise price	$ 7.30
Exercisable, aggregate intrinsic value	153
$4.08 to 6.00 [Member] | Employees [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number outstanding	514,901
Outstanding, weighted average remaining contractual life, years	6 years 8 months 12 days
Outstanding, weighted average exercise price	$ 4.95
Outstanding, aggregate intrinsic value	2,672
Number exercisable	505,818
Exercisable, weighted average remaining contractual life, years	6 years 8 months 1 day
Exercisable, weighted average exercise price	$ 4.97
Exercisable, aggregate intrinsic value	2,617
$4.08 to 6.00 [Member] | Nonemployees [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number outstanding	37,219
Outstanding, weighted average remaining contractual life, years	3 years 11 months 9 days
Outstanding, weighted average exercise price	$ 5.79
Outstanding, aggregate intrinsic value	162
Number exercisable	28,886
Exercisable, weighted average remaining contractual life, years	3 years 2 months 16 days
Exercisable, weighted average exercise price	$ 5.73
Exercisable, aggregate intrinsic value	128
$6.48 to 7.88 [Member] | Employees [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number outstanding	244,800
Outstanding, weighted average remaining contractual life, years	5 years 8 months 19 days
Outstanding, weighted average exercise price	$ 7.06
Outstanding, aggregate intrinsic value	755
Number exercisable	190,200
Exercisable, weighted average remaining contractual life, years	4 years 10 months 17 days
Exercisable, weighted average exercise price	$ 6.82
Exercisable, aggregate intrinsic value	631
$12.45 [Member] | Employees [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number outstanding	149,200
Outstanding, weighted average remaining contractual life, years	9 years 7 months 10 days
Outstanding, weighted average exercise price	$ 12.45
Outstanding, aggregate intrinsic value
Number exercisable	90,310
Exercisable, weighted average remaining contractual life, years	9 years 7 months 10 days
Exercisable, weighted average exercise price	$ 12.45
Exercisable, aggregate intrinsic value
$9.12 [Member] | Nonemployees [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number outstanding	25,002
Outstanding, weighted average remaining contractual life, years	2 years 11 months 27 days
Outstanding, weighted average exercise price	$ 9.12
Outstanding, aggregate intrinsic value	25
Number exercisable	25,002
Exercisable, weighted average remaining contractual life, years	2 years 11 months 27 days
Exercisable, weighted average exercise price	$ 9.12
Exercisable, aggregate intrinsic value	$ 25