Recent Accounting Pronouncements - Contract Assets and Contract Liabilities (Details) - USD ($)	Jun. 30, 2019	Sep. 30, 2018
Unbilled receivables	$ 2,422,000	$ 1,214,000
Contract assets	62,000	1,000
Security and other deposits	53,000	58,000
Long term contract assets	7,000	7,000
Deferred revenue		0
Contract liabilities	$ 33,000	253,000
Previously Reported [Member]
Unbilled receivables		1,215,000
Contract assets		0
Security and other deposits		65,000
Long term contract assets		0
Deferred revenue		253,000
Contract liabilities		$ 0