Accrued Liabilities - Schedule of Accrued Liabilities (Details) - USD ($)	Dec. 31, 2017	Sep. 30, 2017	Dec. 31, 2016
Accrued Liabilities [Line Items]
Accrued payroll and related employee costs		$ 5,205,000	$ 7,035,000
Accrued taxes		1,219,000	1,554,000
Accrued professional fees		1,894,000	1,382,000
Other		6,984,000	3,297,000
Accrued liabilities		$ 15,302,000	$ 13,268,000
Tails Inc.
Accrued Liabilities [Line Items]
Other	$ 4,500,000