Annual report pursuant to Section 13 and 15(d)

Acquisitions - Summary of Purchase Price Allocation of Purchase of Acquired Identifiable Assets, Liabilities Assumed and Goodwill and Bargain Purchase Gain (Detail)

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Acquisitions - Summary of Purchase Price Allocation of Purchase of Acquired Identifiable Assets, Liabilities Assumed and Goodwill and Bargain Purchase Gain (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Jul. 14, 2020
Nov. 01, 2019
Sep. 30, 2020
Sep. 30, 2019
Business Combination Segment Allocation [Line Items]        
Goodwill     $ 37,754 $ 36,947
Gain on bargain purchase of acquisition     $ (1,507) $ 0
Precision Industries, Inc.        
Business Combination Segment Allocation [Line Items]        
Total purchase price $ 5,500      
Less fair value of the holdback option (2,500)      
Net purchase 3,000      
Accounts payable 3,116      
Accrued liabilities 583      
Lease liabilities 8,109      
Debt 23,022      
Total liabilities assumed 34,830      
Total consideration 37,830      
Cash 1,159      
Accounts receivable, net 2,814      
Inventory 24,005      
Property, plant and equipment, net 6,048      
Right of use assets 4,873      
Other assets 438      
Total assets acquired 39,337      
Gain on bargain purchase of acquisition $ (1,507)      
Lonesome Oak        
Business Combination Segment Allocation [Line Items]        
Total purchase price   $ 2,000    
Less fair value of the holdback option   (1,450)    
Net purchase   550    
Accounts payable   7,188    
Accrued liabilities   1,514    
Debt   13,879    
Total liabilities assumed   22,581    
Total consideration   23,131    
Cash   40    
Accounts receivable, net   4,838    
Inventory   13,826    
Property, plant and equipment, net   3,485    
Other assets   135    
Total assets acquired   22,324    
Goodwill   $ 807