Revenue Recognition (Tables)

6 Months Ended

Mar. 31, 2019

Revenue from Contract with Customer [Abstract]

Schedule of Contract Assets and Contract Liabilities

The following table summarizes the balances of the Company's unbilled receivables (contract assets), which are reported in Other current assets, and its customer advances (contract liabilities), which are reported in Accrued expenses.     

	Sept 30, 2018				Mar 31, 2019
Unbilled receivables (contract assets)		$	321			426
Customer advances (contract liabilities)		(510		)		(532	)
Net contract liabilities		$	(189	)		(106	)