Income Taxes - NOL (Details) - USD ($)	Sep. 30, 2023	Sep. 30, 2022
Net operating loss carryforwards
Tax credit	$ 4,607,000
Undistributed losses of foreign subsidiaries	83,063,000
Undistributed losses of foreign subsidiaries taxes	0
Uncertain tax positions	0	$ 0
State
Net operating loss carryforwards
Net operating loss carryforwards	7,254,000
Tax credit	5,832,000
Foreign
Net operating loss carryforwards
Net operating loss carryforwards	1,984,000
Net operating loss carryforward valuation allowance	$ 445,000