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4. ACCOUNTS RECEIVABLE/CUSTOMER CONCENTRATION
6 Months Ended
Mar. 31, 2019
Notes to Financial Statements  
ACCOUNTS RECEIVABLE/CUSTOMER CONCENTRATION

Accounts receivable were $193,372 and $320,538, net of allowance, as of March 31, 2019 and September 30, 2018, respectively. The Company had two customers in excess of 10% (14.8% and 10.1%) of the Company’s consolidated revenues for the three months ended March 31, 2019. The Company had two customers in excess of 10% (21.7%,and 20.7%) with accounts receivable in excess of 10% as of March 31, 2019. The Company has a total allowance for bad debt in the amount of $60,000 as of March 31, 2019. The decrease in accounts receivable related to lower sales and purchases at TransTech.