Income Taxes - NOL (Details) - USD ($)	Sep. 30, 2019	Sep. 30, 2018
Net operating loss carryforwards
Tax credit	$ 1,260,000
Undistributed losses of foreign subsidiaries	71,311,000
Undistributed losses of foreign subsidiaries taxes	0
Uncertain tax positions	0	$ 0
State
Net operating loss carryforwards
Net operating loss carryforwards	14,093,000
Tax credit	3,719,000
Foreign
Net operating loss carryforwards
Net operating loss carryforwards	1,786,000
Net operating loss carryforward valuation allowance	$ 415,000