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Consolidated Condensed Balance Sheets (Parenthetical) - USD ($)
$ in Thousands
May 31, 2020
Feb. 29, 2020
Statement of Financial Position [Abstract]    
Allowance for doubtful receivables and returns $ 2,744 $ 1,461
Property and equipment, accumulated depreciation 136,898 132,340
Accumulated amortization, accumulated amortization 153,372 148,891
Accumulated amortization, other assets $ 2,167 $ 2,167
Preferred stock, par value (in dollars per share) $ 1.00 $ 1.00
Cumulative preferred stock, non-voting, authorized shares (in shares) 2,000,000 2,000,000
Cumulative preferred stock, non-voting, issued shares (in shares) 0 0
Common shares, par value (in dollars per share) $ 0.10 $ 0.10
Common stock, authorized shares (in shares) 50,000,000 50,000,000
Common stock, shares issued (in shares) 25,321,205 25,193,766
Common stock, shares outstanding (in shares) 25,321,205 25,193,766