Quarterly report pursuant to Section 13 or 15(d)

Consolidated Balance Sheets (Parenthetical)

v3.20.1
Consolidated Balance Sheets (Parenthetical) - USD ($)
Feb. 29, 2020
Nov. 30, 2019
Accounts receivable, allowance for doubtful accounts $ 2,631,883 $ 2,584,091
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 13,633,638 13,598,909
Common stock, shares outstanding 7,545,613 7,510,884
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