Quarterly report pursuant to Section 13 or 15(d)

Note 10 - Leases - Operating Lease Expense (Details)

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Note 10 - Leases - Operating Lease Expense (Details) - USD ($)
 3 Months Ended 6 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Mar. 31, 2020
Mar. 31, 2019
Total lease expense under ASC 842 $ 274,272   $ 516,266  
Total lease expense under ASC 840   $ 217,956   $ 440,322
Cost of Sales [Member]        
Total lease expense under ASC 842 218,874   404,502  
Total lease expense under ASC 840   164,118   332,946
Selling, General and Administrative Expenses [Member]        
Total lease expense under ASC 842 $ 55,398   $ 111,764  
Total lease expense under ASC 840   $ 53,838   $ 107,376