Annual report pursuant to Section 13 and 15(d)

Note B - Commitments and Facilities (Details Textual)

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Note B - Commitments and Facilities (Details Textual) - USD ($)
12 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2013
Nov. 13, 2014
Operating Leases, Rent Expense $ 630,000 $ 505,000 $ 450,000  
Stock Repurchase Program, Authorized Amount       $ 8,000,000
Stock Repurchase Program, Remaining Authorized Repurchase Amount $ 7,151,000