| Reconciliation of Weighted-average Shares Outstanding Basic and Diluted |
| | | Three Months Ended | | | Six Months Ended | | | | | February 28, | | | February 28, | | | February 28, | | | February 28, | | | | | 2014 | | | 2013 | | | 2014 | | | 2013 | | | | | | | | | | | | | | | | | Weighted-average shares outstanding-basic | | | 76,203,938 | | | | 54,900,326 | | | | 74,934,940 | | | | 53,272,213 | | | Potentially dilutive common shares from: | | | | | | | | | | | | | | | Stock Options | | | 512,399 | | | | 1,292,599 | | | | 532,095 | | | | 1,180,219 | | | Warrants | | | 1,274,079 | | | | 288,827 | | | | 1,376,558 | | | | 260,929 | | | | | | 1,786,478 | | | | 1,581,426 | | | | 1,908,653 | | | | 1,441,148 | | | Weighted-average shares outstanding - diluted | | | 77,990,416 | | | | 56,481,752 | | | | 76,843,593 | | | | 54,713,361 | | |
| Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share |
| | | Three Months Ended | | | Six Months Ended | | | | | February 28, | | | February 28, | | | February 28, | | | February 28, | | | | | 2014 | | | 2013 | | | 2014 | | | 2013 | | | | | | | | | | | | | | | | | Warrants | | | - | | | | 8,970,000 | | | | - | | | | 8,970,000 | | | Employee stock options | | | 886,333 | | | | 2,355,000 | | | | 829,160 | | | | 2,450,000 | | | Total | | | 886,333 | | | | 11,325,000 | | | | 829,160 | | | | 11,420,000 | | |