CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Aug. 31, 2014	Aug. 31, 2013
Assets, Current [Abstract]
Allowance for Doubtful Accounts Receivable, Current	$ 0	$ 0
Prepaid expenses and other current assets, fair value of derivative instruments	495,000	0
Other non-current assets, fair value of derivative instruments	1,095,000	1,505,000
Liabilities and Equity [Abstract]
Other long-term liabilities, fair value of derivative instruments	0	14,000
Other long-term liabilities, defined benefit plan	$ 372,000	$ 589,000
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Common Stock, Par or Stated Value Per Share	$ 0.0001	$ 0.0001
Common Stock, Shares Authorized	45,000,000	45,000,000
Common Stock, Shares, Issued	30,950,701	30,924,392
Common Stock, Shares, Outstanding	30,209,917	30,234,506
Treasury Stock, Shares	740,784	689,886