XML 26 R4.htm IDEA: XBRL DOCUMENT v3.24.3
Consolidated Balance Sheets (Parenthetical) - USD ($)
Jul. 31, 2024
Jul. 31, 2023
Stockholders’ equity:    
Convertible preferred stock, par value (in dollars per share) $ 0.10 $ 0.10
Convertible preferred stock, shares authorized (in shares) 171,827 125,000
Convertible preferred stock, shares issued (in shares) 171,827 100,000
Convertible preferred stock, accrued dividends $ 1,341,000 $ 604,000
Preferred stock, par value (in dollars per share) $ 0.10 $ 0.10
Preferred stock, shares authorized (in shares) 1,828,173 1,875,000
Common stock, par value (in dollars per share) $ 0.10 $ 0.10
Common stock, shares authorized (in shares) 100,000,000 100,000,000
Common stock, shares issued (in shares) 43,766,109 43,096,271
Treasury stock, shares (in shares) 15,033,317 15,033,317