|
Stock-Based Compensation (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
|
3 Months Ended |
6 Months Ended |
|
Feb. 28, 2014
|
Feb. 28, 2013
|
Feb. 28, 2014
|
Feb. 28, 2013
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
| Stock-based compensation expense |
$ 447 |
$ 215 |
$ 867 |
$ 383 |
| Term |
10 years |
10 years |
10 years |
10 years |
| Vesting Period |
5 years |
5 years |
5 years |
5 years |
| Fair value |
711 |
490 |
1,725 |
1,111 |
| Summary of activity for stock options: |
|
|
|
|
| Outstanding, August 31, 2013 |
|
|
1,820,000 |
|
| Granted |
113,000 |
125,000 |
263,000 |
355,000 |
| Exercised |
|
|
(16,000) |
|
| Outstanding, November 30, 2013 |
2,067,000 |
|
2,067,000 |
|
| Outstanding, weighted average exercise price |
|
|
$ 4.88 |
|
| Granted, weighted average exercise price |
$ 9.38 |
$ 5.65 |
$ 9.72 |
$ 4.52 |
| Exercised, weighted average exercise price |
|
|
$ 4.26 |
|
| Outstanding, weighted average exercise price |
$ 5.27 |
|
$ 5.27 |
|
| Assumptions used in valuing stock options: |
|
|
|
|
| Expected term |
|
|
6 years 6 months |
6 years 4 months 24 days |
| Expected volatility |
|
|
74.00% |
78.70% |
| Risk free rate |
|
|
1.97% |
1.06% |
| Expected dividend yield |
|
|
0.00% |
0.00% |
| Forfeiture rate |
|
|
0.00% |
0.00% |
| Vested Options: |
|
|
|
|
| Number of shares |
553,000 |
|
553,000 |
|
| Weighted average remaining contractual life |
|
|
7 years 4 months 24 days |
|
| Weighted average exercise price |
$ 4.02 |
|
$ 4.02 |
|
| Aggregate intrinsic value |
3,633 |
|
3,633 |
|
| Unrecognized compensation expense |
5,306 |
|
5,306 |
|
| Remaining vesting phase |
|
|
3 years 6 months |
|
|
Stock options [Member]
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
| Stock-based compensation expense |
447 |
154 |
867 |
279 |
|
Restricted stock grants [Member]
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
| Stock-based compensation expense |
|
46 |
|
58 |
|
Investor relations warrants [Member]
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
| Stock-based compensation expense |
|
$ 15 |
|
$ 46 |