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CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $)
In Thousands, except Per Share data, unless otherwise specified
 3 Months Ended 6 Months Ended
Apr. 30, 2012
Apr. 30, 2011
Apr. 30, 2012
Apr. 30, 2011
Sales and service fees $ 45,965 $ 41,576 $ 97,091 $ 81,256
Cost of sales and service 32,572 28,925 67,214 56,914
Gross profit 13,393 12,651 29,877 24,342
Selling, general and administrative expenses 9,288 9,254 19,018 18,084
Operating income 4,105 3,397 10,859 6,258
Interest expense 38 9 62 14
Interest income 19 32 41 72
Investment income (expense) (4) 2 2 7
Other (income) expense, net 17 23 (121) 479
Income before taxes 4,065 3,399 10,961 5,844
Provision for income taxes 1,103 1,050 3,366 1,949
Net income $ 2,962 $ 2,349 $ 7,595 $ 3,895
Income per common share        
Basic $ 0.46 $ 0.36 $ 1.17 $ 0.60
Diluted $ 0.45 $ 0.36 $ 1.16 $ 0.60
Weighted average common shares outstanding        
Basic 6,443 6,441 6,442 6,441
Diluted 6,479 6,489 6,473 6,476