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CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $)
In Thousands, except Per Share data, unless otherwise specified
 3 Months Ended 9 Months Ended
Jul. 31, 2012
Jul. 31, 2011
Jul. 31, 2012
Jul. 31, 2011
Sales and service fees $ 49,959 $ 50,573 $ 147,050 $ 131,829
Cost of sales and service 33,875 34,723 101,089 91,637
Gross profit 16,084 15,850 45,961 40,192
Selling, general and administrative expenses 10,272 9,317 29,290 27,401
Operating income 5,812 6,533 16,671 12,791
Interest expense 43 47 105 61
Interest income 16 35 57 107
Investment income (expense) 3 2 5 9
Other (income) expense, net 190 242 69 721
Income before taxes 5,598 6,281 16,559 12,125
Provision for income taxes 1,641 1,706 5,007 3,655
Net income $ 3,957 $ 4,575 $ 11,552 $ 8,470
Income per common share        
Basic $ 0.61 $ 0.71 $ 1.78 $ 1.31
Diluted $ 0.61 $ 0.70 $ 1.77 $ 1.30
Weighted average common shares outstanding        
Basic 6,447 6,441 6,444 6,441
Diluted 6,465 6,480 6,470 6,474