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Revenue - Narrative (Details) - USD ($)		6 Months Ended
	Oct. 01, 2018	Mar. 31, 2019	Sep. 30, 2018
Capitalized Contract Cost [Line Items]
Managed service contracts, right to refund, period		30 days
Current contract assets	$ 1,100,000	$ 708,000
Current contract liabilities	900,000	3,100,000
Revenue recognized included in contract liabilities		500,000
Non-current contract liabilities	0	0
Current capitalized costs	71,000		$ 79,000
Incremental costs amortized	108,000	56,000
Impairment related to incremental costs capitalized		$ 0
Payments terms		30 days
Europe
Capitalized Contract Cost [Line Items]
Payments terms		90 days
Total
Capitalized Contract Cost [Line Items]
Current capitalized costs	60,000	$ 52,000
Incremental costs amortized	$ 8,000	5,000
Impairment related to incremental costs capitalized		$ 0

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