Quarterly report pursuant to Section 13 or 15(d)

Accounts Receivable and Concentration of Credit Risk (Summary Of Components Of Allowance For Doubtful Accounts) (Details)

v3.10.0.1
Accounts Receivable and Concentration of Credit Risk (Summary Of Components Of Allowance For Doubtful Accounts) (Details) - USD ($)
3 Months Ended 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Sep. 30, 2018
Accounts Receivable and Concentration of Credit Risk [Abstract]      
Beginning balance $ 36,201 $ 38,103 $ 38,103
Charges to expense    
Charge-offs (5,000)  
Ending balance $ 36,201 $ 33,103 $ 36,201