Note A - Allowance for Doubtful Accounts (Details) - USD ($)  | 
12 Months Ended | ||
|---|---|---|---|
Sep. 30, 2015  | 
Sep. 30, 2014  | 
Sep. 30, 2013  | 
|
| Balance at Beginning of Year | $ 97,950 | $ 97,950 | $ 97,950 | 
| Additions Charged to Costs and Expenses | |||
| Less Write-offs | $ (18,477) | ||
| Balance at End of Year | $ 79,473 | $ 97,950 | $ 97,950 | 
| X | ||||||||||
- Definition For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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| X | ||||||||||
- Definition Amount of increase (decrease) in the allowance for doubtful accounts. No definition available. 
  | 
| X | ||||||||||
- Definition Amount of direct write-downs of accounts receivable charged against the allowance. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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