Note 3 - Accounts Receivable and Unbilled Receivables

9 Months Ended

Jun. 30, 2018

Notes to Financial Statements

Loans, Notes, Trade and Other Receivables Disclosure [Text Block]

3.

Accounts Receivable and Unbilled Receivables

Accounts receivable and unbilled receivables consists of the following:

	As of			As of
	June 30, 2018			September 30, 2017
Accounts receivable	$	2,061		$	3,174
Unbilled receivables		214			41
Subtotal		2,275			3,215
Allowance for doubtful accounts		(172	)		(189	)
Accounts receivable and unbilled receivables, net	$	2,103		$	3,026

As of

June 30, 2018,

two

customers represented

15%

and

10%

of accounts receivable. As of

September 30, 2017,

two

customers represented

23%

and

14%

of accounts receivable. Unbilled receivables represent amounts recognized as revenue for which invoices have

not

yet been sent.