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Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($)
$ in Thousands
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Total
Balance (in shares) at Oct. 31, 2019 9,462,267      
Balance at Oct. 31, 2019 $ 95 $ 21,949 $ 9,489 $ 31,533
Exercise of stock options (in shares) 241,209      
Exercise of stock options $ 2 443 0 445
Stock-based compensation expense $ 0 367 0 367
Issuance of restricted stock (in shares) 54,850      
Issuance of restricted stock $ 1 (1) 0 0
Consolidated net income $ 0 0 (240) (240)
Issuance of common shares (in shares) 13,191      
Issuance of common shares $ 0 82 0 82
Dividends $ 0 0 (388) (388)
Balance (in shares) at Jul. 31, 2020 9,771,517      
Balance at Jul. 31, 2020 $ 98 22,840 8,861 31,799
Balance (in shares) at Apr. 30, 2020 9,758,062      
Balance at Apr. 30, 2020 $ 98 22,652 8,943 31,693
Exercise of stock options (in shares) 12,339      
Exercise of stock options $ 0 22 0 22
Stock-based compensation expense 0 161 0 161
Consolidated net income $ 0 0 (82) (82)
Issuance of common shares (in shares) 1,116      
Issuance of common shares $ 0 5 0 5
Balance (in shares) at Jul. 31, 2020 9,771,517      
Balance at Jul. 31, 2020 $ 98 22,840 8,861 31,799
Balance (in shares) at Oct. 31, 2020 9,814,118      
Balance at Oct. 31, 2020 $ 98 22,946 9,020 $ 32,064
Exercise of stock options (in shares) 180,528     180,528
Exercise of stock options $ 1 566 0 $ 567
Stock-based compensation expense $ 0 634 0 634
Issuance of restricted stock (in shares) 38,674      
Issuance of restricted stock $ 1 (1) 0 0
Forfeiture of restricted stock (in shares) (5,182)      
Forfeiture of restricted stock $ 0 0 0 0
Tax withholding related to vesting of restricted stock (in shares) (2,540)      
Tax withholding related to vesting of restricted stock $ 0 (13) 0 (13)
Consolidated net income $ 0 0 5,368 5,368
Balance (in shares) at Jul. 31, 2021 10,025,598      
Balance at Jul. 31, 2021 $ 100 24,132 14,388 38,620
Balance (in shares) at Apr. 30, 2021 10,001,056      
Balance at Apr. 30, 2021 $ 100 23,678 13,462 37,240
Exercise of stock options (in shares) 23,827      
Exercise of stock options $ 0 82 0 82
Stock-based compensation expense $ 0 374 0 374
Issuance of restricted stock (in shares) 1,840      
Issuance of restricted stock $ 0 0 0 0
Forfeiture of restricted stock (in shares) (864)      
Forfeiture of restricted stock $ 0 0 0 0
Tax withholding related to vesting of restricted stock (in shares) (261)      
Tax withholding related to vesting of restricted stock $ 0 (2) 0 (2)
Consolidated net income $ 0 0 926 926
Balance (in shares) at Jul. 31, 2021 10,025,598      
Balance at Jul. 31, 2021 $ 100 $ 24,132 $ 14,388 $ 38,620