Income Taxes - NOL (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Sep. 30, 2015
Net operating loss carryforwards
Tax credit	$ 1,198	$ 778
Undistributed losses of foreign subsidiaries	54,172
Undistributed losses of foreign subsidiaries taxes	0
State
Net operating loss carryforwards
Net operating loss carryforwards	3,453	24
Foreign
Net operating loss carryforwards
Net operating loss carryforwards	$ 349	483
Net operating loss carryforward valuation allowance		$ 349