Concentrations of Credit Risk

3 Months Ended

Dec. 31, 2018

Concentrations of Credit Risk [Abstract]

Concentration Risk Disclosure [Text Block]

9. Concentrations of Credit Risk

Credit risk is the risk of an unexpected loss if a customer or third party to a financial instrument fails to meet its contractual obligations. Financial instruments that potentially subject the Company to a concentration of credit risk consist primarily of cash and cash equivalents, U.S Treasury Bills, and accounts receivable. The Company estimates its maximum credit risk at the amount recorded on the balance sheet.

Management’s assessment of the Company’s credit risk for cash and cash equivalents is low as they are held in major financial institutions believed to be credit worthy or U.S. Treasury Bills with maturities of 90 days or less. The Company limits its exposure to credit loss for short-term investments by holding U.S. Treasury Bills with maturities of 1 year or less. Based on credit monitoring and history, the Company considers the risk of credit losses due to customer non-performance on accounts receivable to be low.

The Company had the following concentrations of revenues by customers, each of which accounted for more than 10% of revenues in the applicable period:

	Three Months Ended
	December 31,		December 31,
	2018		2017
Product sales		86% from 3 customers		98% from 3 customers

The Company had the following concentrations of revenues by geographic areas:

	Three Months Ended
	December 31,			December 31,
	2018			2017
North America		81	%		27	%
Europe		19	%		73	%

The Company had the following concentrations of accounts receivable from its customers, each of which accounted for more than 10% in the applicable period:

	December 31,		September 30,
	2018		2018
Accounts receivable		82% from 2 customers		87% from 2 customers