v3.19.3
Acquisition of Unitron Assets - Summary of Purchase Price Allocated to Net Assets Acquired in Transaction (Detail) - USD ($)
Sep. 30, 2019
Aug. 17, 2018
Business Acquisition [Line Items]    
Goodwill $ 984,000  
Unitron Assets [Member]    
Business Acquisition [Line Items]    
Cash   $ 18,000
Accounts receivable   27,000
Inventory   1,243,000
Other current assets   601,000
Fixed assets   332,000
Intangibles   76,000
Goodwill   4,399,000
Other assets   41,000
Accounts payable   (2,169,000)
Notes payable   (868,000)
Total   $ 3,700,000