v3.19.3
Acquisition of Simply Mac - Additional Information (Detail) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 25, 2019
Sep. 20, 2019
May 09, 2019
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Business Acquisition [Line Items]                
Business acquisition, net sales       $ 7,057,000 $ 5,378,000 $ 17,211,000 $ 15,682,000  
Business acquisition, operating loss       1,933,000 $ 2,883,000 9,344,000 $ 7,901,000  
Simply Mac, Inc. [Member]                
Business Acquisition [Line Items]                
Business acquisition, net sales       1,924,000   1,924,000    
Business acquisition, operating loss       $ 247,000   247,000    
Business acquisition, unaudited pro forma net sales           69,704,000   $ 114,400,000
Business acquisition, unaudited pro forma net loss           $ 16,069,000   $ 25,371,000
Simply Mac, Inc. [Member] | Stock Purchase Agreement [Member]                
Business Acquisition [Line Items]                
Stock purchase agreement date     May 09, 2019          
Stock purchase agreement amended date   Sep. 20, 2019            
Aggregate consideration for stock purchase $ 12,552,000              
Cash consideration $ 4,694,000              
Maximum acquisition period to complete valuation and related analysis 1 year              
Value of implied goodwill deductible for tax purposes $ 984,000              
Simply Mac, Inc. [Member] | Stock Purchase Agreement [Member] | 12% Secured Promissory Note [Member]                
Business Acquisition [Line Items]                
Notes payable, interest rate 12.00%              
Purchase consideration as promissory note $ 7,858,000