Consolidated Balance Sheets (Parenthetical) - $ / shares |
May 31, 2016 |
Nov. 30, 2015 |
|---|---|---|
| Consolidated Balance Sheets | ||
| Common stock, par value (in dollars per share) | $ 0.01 | $ 0.01 |
| Common stock, shares authorized | 10,000,000 | 10,000,000 |
| Common stock, shares issued | 5,541,029 | 5,541,029 |
| Common stock, shares outstanding | 5,092,708 | 5,152,708 |
| Treasury stock, shares | 448,321 | 388,321 |