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CONSOLIDATED STATEMENTS OF INCOME (USD $)
 12 Months Ended
Oct. 31, 2011
Oct. 31, 2010
Net sales $ 19,433,503 $ 16,322,178
Cost of sales 10,097,130 8,158,798
Gross profit 9,336,373 8,163,380
Operating expenses:    
Engineering 1,246,758 887,865
Selling and general 6,953,510 5,133,967
Goodwill impairment   137,328
Totals 8,200,268 6,159,160
Operating income 1,136,105 2,004,220
Other income/(expense)    
Interest income 44,542 86,614
Interest expense (28,804)  
Other income, net 15,738 86,614
Income before provision for income taxes 1,151,843 2,090,834
Provision for income taxes 378,832 870,587
Consolidated net income 773,011 1,220,247
Net loss attributable to noncontrolling interest (2,727)  
Net income attributable to RF Industries, Ltd. and Subsidiary $ 775,738 $ 1,220,247
Earnings per share:    
Basic $ 0.12 $ 0.21
Diluted $ 0.11 $ 0.19