Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plans (Details)

v3.10.0.1
Employee Benefit Plans (Details) - USD ($)
 12 Months Ended
Sep. 30, 2018
Sep. 30, 2017
401(k) [Member]    
Defined Contribution Plan [Line Items]    
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent 100.00%  
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay 4.00%  
Defined Benefit Plan, Contributions by Employer (in Dollars) $ 83,000  
United States Postretirement Benefit Plan of US Entity [Member]    
Defined Contribution Plan [Line Items]    
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Amount (in Dollars) $ 15,500  
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent 100.00%  
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay 3.00%  
Defined Benefit Plan, Contributions by Employer (in Dollars) $ 22,000 $ 73,000
Foreign Postretirement Benefit Plan [Member]    
Defined Contribution Plan [Line Items]    
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay 3.00%  
Defined Benefit Plan, Contributions by Employer (in Dollars) $ 23,000 $ 22,000