STOCK BASED COMPENSATION Schedule of shared based arrangement (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Nov. 30, 2013	Nov. 30, 2012	Aug. 31, 2013	Feb. 28, 2013	Aug. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Document Period End Date	Nov. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized				1,531,818
Options granted to directors	$ 29	$ 33
Restricted stock awards	1,151	1,550
Restricted stock units	250	240
Stock-based compensation expense	1,430	1,823
Remaining unrecognized compensation cost (in thousands)	24,014	25,658
Weighted average period of time over which this cost will be recognized (years)	7 years	8 years
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	622,425	706,487	623,424		700,893
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	0	6,264
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period	(999)	(670)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 0.00	$ 82.87
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period, Weighted Average Grant Date Fair Value	$ 53.62	$ 19.85
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Total Fair Value	0	0
Share-based Compensation Arrangement by Share-based Payment Award, Shares Purchased for Award	0	0
Share-based Compensation Arrangement by Share-based Payment Award, Shares Purchased for Award, Amount	$ 0	$ 0
Stock Issued During Period, Shares, Treasury Stock Reissued	0	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	28,000		28,000
2013 Equity Incentive Award Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	783,384		782,385
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	838,766			600,000