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CONSOLIDATED STATEMENTS OF INCOME (USD $)
 12 Months Ended
Oct. 31, 2012
Oct. 31, 2011
Net sales $ 30,232,653 $ 19,433,503
Cost of sales 16,998,833 10,097,130
Gross profit 13,233,820 9,336,373
Operating expenses:    
Engineering 1,134,095 1,246,758
Selling and general 8,024,485 6,953,510
Totals 9,158,580 8,200,268
Operating income 4,075,240 1,136,105
Other income (expense)    
Interest income 37,669 44,542
Interest expense    (28,804)
Other income, net 37,669 15,738
Income before provision for income taxes 4,112,909 1,151,843
Provision for income taxes 1,500,487 378,832
Consolidated net income 2,612,422 773,011
Net income (loss) attributable to noncontrolling interest 1,848 (2,727)
Net income attributable to RF Industries, Ltd. and Subsidiary $ 2,610,574 $ 775,738
Earnings per share:    
Basic $ 0.38 $ 0.12
Diluted $ 0.34 $ 0.11