Commitments and Contingencies (Details) $ in Thousands	3 Months Ended
	Dec. 31, 2019 USD ($) press_ton restored_building	Sep. 30, 2019 USD ($)	Dec. 26, 2018 additional_press
Loss Contingencies [Line Items]
Number of press tons | press_ton	2,500
Quality Aluminum Forge, LLC Manufacturing Facility Fire
Loss Contingencies [Line Items]
Number of recovered presses on site | restored_building	1
Cash proceeds	$ 4,500
Class Action Suit in Superior Court of California, Orange County - Wage-and-hour law violations
Loss Contingencies [Line Items]
Estimated loss on class action lawsuit	$ 65	$ 250
Damage from Fire, Explosion or Other Hazard | Quality Aluminum Forge, LLC Manufacturing Facility Fire
Loss Contingencies [Line Items]
Number of additional damaged presses on site | additional_press			2