Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Additional Information (Details)

v3.20.1
Summary of Significant Accounting Policies - Additional Information (Details) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 19, 2019
Mar. 31, 2020
Mar. 31, 2019
Mar. 31, 2020
Mar. 31, 2019
Jul. 01, 2019
Jun. 30, 2019
Summary Of Significant Accounting Policies [Line Items]              
Restricted cash   $ 200,000   $ 200,000     $ 300,000
Notice period to terminate contract       14 days      
Precious metals held under financing arrangements   187,005,000   $ 187,005,000     $ 208,792,000
Lease cost   400,000   1,300,000      
Operating lease cost   $ 300,000   1,000,000      
Operating lease payments       $ 1,100,000      
Operating lease term (in years)   4 years 8 months 12 days   4 years 8 months 12 days      
Operating lease (percent)   4.90%   4.90%      
Metals purchase by customer maximum specified time period       1 year      
Metal delivers to customer after receiving customers deposit based on prevailing current spot price percentage       110.00%      
Unpriced metal is subject to margin call If deposit falls below percentage of value of unpriced metal       105.00%      
Percentage to remit partial payment of total order price       20.00%      
Advertising expense   $ 756,000 $ 619,000 $ 1,565,000 $ 1,857,000    
Cost of sales   1,236,247,000 1,258,270,000 3,756,380,000 3,907,480,000    
Operating lease right of use assets, net   4,508,000   4,508,000      
Total present value of lease liabilities   5,423,000   5,423,000      
Accounting Standards Update 2016-02              
Summary Of Significant Accounting Policies [Line Items]              
Operating lease right of use assets, net           $ 5,300,000  
Total present value of lease liabilities           $ 6,300,000  
Shipping and Handling              
Summary Of Significant Accounting Policies [Line Items]              
Cost of sales   $ 3,700,000 $ 1,700,000 $ 6,500,000 $ 4,800,000    
Convertible Revolving Credit Facility              
Summary Of Significant Accounting Policies [Line Items]              
Line of credit facility, maximum borrowing capacity $ 4,000,000            
Line of credit facility, interest rate 12.00%            
Line of credit facility, expiration date Sep. 18, 2022            
Line of credit facility, percentage of outstanding principal converted into borrower's issued and outstanding common stock 22.00%            
Line of credit facility, percentage of repay outstanding unrelated third-party debt in exchange for borrower's issued and outstanding common stock 27.50%            
Line of credit facility, additional interest rate in case of default by borrower 10.00%            
Line of credit facility, entitlement of interest to lender in event of excess gross sales price $ 9,900,000            
Minimum              
Summary Of Significant Accounting Policies [Line Items]              
Estimated useful lives of related assets       3 years      
Estimated useful lives of intangibles       3 years      
Percentage of investments in privately-held entities accounted under equity method   20.00%   20.00%      
Maximum              
Summary Of Significant Accounting Policies [Line Items]              
Estimated useful lives of related assets       25 years      
Estimated useful lives of intangibles       15 years      
Percentage of investments in privately-held entities accounted under equity method   50.00%   50.00%      
Customer locks period for purchase price       2 years