Annual report pursuant to Section 13 and 15(d)

Acquisitions - Additional Information (Detail)

v3.21.4
Acquisitions - Additional Information (Detail) - USD ($)
 1 Months Ended 12 Months Ended
Jul. 14, 2020
Nov. 01, 2019
Jul. 31, 2021
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2019
Business Acquisition [Line Items]            
Goodwill   $ 807,000   $ 41,471,000 $ 37,754,000 $ 36,947,000
Business combination hold back amount due to unrecorded liabilities         1,300,000  
Business combination holdback amount written off due to inventory obsolescence     $ 1,300,000      
Bargain purchase gain       $ 0 $ 1,507,000  
Precision Industries Affiliated Holdings [Member]            
Business Acquisition [Line Items]            
Percentage of issued and outstanding shares 100.00%          
Marquis            
Business Acquisition [Line Items]            
Business combination, transaction value   2,000,000.0        
Business combination, debt   12,500,000        
Business combination, Holdback amount   $ 1,500,000        
Business combination, term of employment agreement   5 years        
Business combination, term of non competition and non solicitation covenant   3 years        
Precision Industries Inc [Member]            
Business Acquisition [Line Items]            
Business combination, transaction value $ 5,500,000          
Payment to acquire business 31,500,000          
Business combination, Holdback amount $ (2,500,000)          
Date of merger agreement Jul. 14, 2020          
Bargain purchase gain $ 1,507,000          
SW Financial            
Business Acquisition [Line Items]            
Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage       100.00%