Quarterly report pursuant to Section 13 or 15(d)

Consolidated Balance Sheets (Parenthetical)

v3.5.0.2
Consolidated Balance Sheets (Parenthetical) - USD ($)
Aug. 31, 2016
Nov. 30, 2015
Accounts receivable, allowance for doubtful accounts $ 2,289,644 $ 2,067,130
Preferred stock, par value $ 0.01 $ 0.01
Preferred stock, shares authorized 500,000 500,000
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0
Common stock, par value $ 0.01 $ 0.01
Common stock, shares authorized 20,000,000 20,000,000
Common stock, shares issued 12,504,464 12,260,340
Common stock, shares outstanding 6,825,413 9,010,322
Series A Junior Participating Preferred Stock [Member]    
Preferred stock, par value $ 0.01 $ 0.01
Preferred stock, shares authorized 20,000 20,000
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0