Income Taxes (Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	[1]	Sep. 30, 2017	[1]
Income Tax Disclosure [Abstract]
United States	$ 7,981	$ (2,427)		$ 5,229
International	3,164	5,677		4,321
Income before income taxes	$ 11,145	$ 3,250		$ 9,550

[1] Prior period information has been restated for the adoption of ASU No. 2014-09, “Revenue from Contracts with Customers (Topic 606)”, which we adopted on October 1, 2018.