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CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
Common Stock
Additional Paid-in Capital
Retained Earnings
Total
Balance at Oct. 31, 2017 $ 89,000 $ 19,654,000 $ 1,600,000 $ 21,343,000
Balance (in shares) at Oct. 31, 2017 8,872,246      
Exercise of stock options $ 4,000 1,014,000 0 1,018,000
Exercise of stock options (in shares) 396,087      
Stock-based compensation expense $ 0 189,000 0 189,000
Dividends 0 0 (544,000) (544,000)
Consolidated net income 0 0 5,389,000 5,389,000
Balance at Jul. 31, 2018 $ 93,000 20,857,000 6,445,000 27,395,000
Balance (in shares) at Jul. 31, 2018 9,268,333      
Balance at Apr. 30, 2018 $ 92,000 20,196,000 4,899,000 25,187,000
Balance (in shares) at Apr. 30, 2018 9,144,873      
Exercise of stock options $ 1,000 604,000 0 605,000
Exercise of stock options (in shares) 123,460      
Stock-based compensation expense $ 0 57,000 0 57,000
Dividends 0 0 (185,000) (185,000)
Consolidated net income 0 0 1,731,000 1,731,000
Balance at Jul. 31, 2018 $ 93,000 20,857,000 6,445,000 27,395,000
Balance (in shares) at Jul. 31, 2018 9,268,333      
Balance at Oct. 31, 2018 $ 93,000 20,974,000 6,716,000 27,783,000
Balance (in shares) at Oct. 31, 2018 9,291,201      
Exercise of stock options $ 1,000 413,000 0 414,000
Exercise of stock options (in shares) 99,150      
Stock-based compensation expense $ 0 260,000 0 260,000
Dividends 0 0 (560,000) (560,000)
Consolidated net income 0 0 2,739,000 2,739,000
Balance at Jul. 31, 2019 $ 94,000 21,647,000 8,895,000 30,636,000
Balance (in shares) at Jul. 31, 2019 9,390,351      
Balance at Apr. 30, 2019 $ 94,000 21,522,000 8,044,000 29,660,000
Balance (in shares) at Apr. 30, 2019 9,360,351      
Exercise of stock options $ 0 57,000 0 57,000
Exercise of stock options (in shares) 30,000      
Stock-based compensation expense $ 0 68,000 0 68,000
Dividends 0 0 (187,000) (187,000)
Consolidated net income 0 0 1,038,000 1,038,000
Balance at Jul. 31, 2019 $ 94,000 $ 21,647,000 $ 8,895,000 $ 30,636,000
Balance (in shares) at Jul. 31, 2019 9,390,351