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XML - IDEA: XBRL DOCUMENT - GENCOR INDUSTRIES INCR36.htm
EXCEL - IDEA: XBRL DOCUMENT - GENCOR INDUSTRIES INCFinancial_Report.xls
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10-K - FORM 10-K - GENCOR INDUSTRIES INCd402869d10k.htm
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XML - IDEA: XBRL DOCUMENT - GENCOR INDUSTRIES INCR47.htm
EX-32.1 - CERTIFICATION - GENCOR INDUSTRIES INCd402869dex321.htm
EX-21.1 - SUBSIDIARIES - GENCOR INDUSTRIES INCd402869dex211.htm
EX-31.1 - CERTIFICATION - GENCOR INDUSTRIES INCd402869dex311.htm
EX-23.1 - CONSENT - GENCOR INDUSTRIES INCd402869dex231.htm
EX-31.2 - CERTIFICATION - GENCOR INDUSTRIES INCd402869dex312.htm
v2.4.0.6
Stock Based Compensation (Details Textual) (USD $)
12 Months Ended 12 Months Ended 12 Months Ended
Sep. 30, 2012
Jun. 30, 2011
Sep. 30, 2012
Option 2009 Plan [Member]
Sep. 30, 2012
Option 1997 Plan [Member]
Sep. 30, 2012
The 2009 Plan [Member]
May 28, 2012
The 2009 Plan [Member]
Jun. 30, 2011
Common Stock
Option 2009 Plan [Member]
Mar. 17, 2009
Common Stock
Option 2009 Plan [Member]
Sep. 30, 2012
Common Stock
Option 1997 Plan [Member]
Sep. 30, 2012
Common Stock
The 2009 Plan [Member]
Mar. 17, 2009
Class B Stock
Option 2009 Plan [Member]
Sep. 30, 2012
Class B Stock
Option 1997 Plan [Member]
Sep. 30, 2012
Class B Stock
The 2009 Plan [Member]
Stock Based Compensation (Textual) [Abstract]                          
Maximum Number of Shares Granting of Awards under 2009 Plan               800,000 1,200,000   160,000 1,200,000  
Common stock options issued to an employee           20,000              
Maximum number of Stock options issued under the 2009 Plan to employees             298,000            
Options vesting rate   25.00%       25.00%              
Options vesting period     October 1, 2012 through October 1, 2015                    
Options exercisable     Through October 1, 2021                    
Shares available for granting under 2009 Plan       0           482,000     160,000
Percentage of common stock to be purchased of authorized common stock of any subsidiary                 15.00%        
Remaining contractual life on the options outstanding under 2009 Plan 10 years     4 years 9 years                
Stock Based Compensation (Additional Textual) [Abstract]                          
Fair value of maximum number options at time of grant $ 63,000                        
Options Vestible Through May28,2016                        
Estimated fair value of maximum number options at time of grant 941,000                        
Maximum compensation expense 711,000                        
Compensation expense remaining to be expensed $ 58,000                        
Remaining contractual life on the options outstanding under 2009 Plan 10 years     4 years 9 years