Consolidated Balance Sheets (Parenthetical) - $ / shares	May. 31, 2015	Nov. 30, 2014
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	5,537,895
Common stock, shares outstanding	5,152,708	5,149,574
Treasury stock, shares	388,321	388,321