Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions (Details)

v3.10.0.1
Related Party Transactions (Details)
3 Months Ended 6 Months Ended
Aug. 28, 2017
USD ($)
Dec. 31, 2018
USD ($)
loan
Dec. 31, 2017
USD ($)
Dec. 31, 2018
USD ($)
loan
Dec. 31, 2017
USD ($)
Dec. 07, 2018
USD ($)
Jun. 30, 2018
USD ($)
Mar. 01, 2018
USD ($)
Sep. 19, 2017
USD ($)
Related Party Transaction [Line Items]                  
Receivable   $ 17,530,000   $ 17,530,000     $ 13,240,000    
Payables   693,000   693,000     8,872,000    
Sales   103,687,000 $ 124,514,000 225,864,000 $ 214,067,000        
Purchases   3,850,000 8,102,000 23,445,000 10,948,000        
Income (loss) from equity method investment   311,000 122,000 559,000 179,000        
Equity method investment   8,447,000   8,447,000     7,888,000    
March 1, 2018 Loan Agreement                  
Related Party Transaction [Line Items]                  
Maximum borrowing capacity available               $ 10,000,000  
Participation interest, percentage of net profits realized on sale               10.00%  
Goldline, LLC                  
Related Party Transaction [Line Items]                  
Other long-term liabilities (related party)           $ 150,000      
Borrowings due on demand   0   0     7,200,000    
Liabilities incurred for the acquisition $ 7,500,000                
Unamortized debt issuance expense   0   0     300,000    
Debt issuance costs, net   $ 0   $ 0          
Debt instrument, fees (in percentage)   2.00%   2.00%   2.00%      
Former Parent                  
Related Party Transaction [Line Items]                  
Receivable   $ 17,264,000   $ 17,264,000     13,240,000    
Payables   0   0     0    
Sales   1,613,000 8,065,000 19,088,000 12,497,000        
Purchases   1,187,000 1,152,000 17,959,000 3,541,000        
Former Parent | September 19, 2017 Loan Agreement                  
Related Party Transaction [Line Items]                  
Short term loan receivable   6,000,000   6,000,000     3,000,000    
Maximum borrowing capacity available                 $ 5,300,000
Former Parent | March 1, 2018 Loan Agreement                  
Related Party Transaction [Line Items]                  
Short term loan receivable   11,000,000   11,000,000     9,500,000    
Equity method investee                  
Related Party Transaction [Line Items]                  
Receivable   0   0     0    
Payables   693,000   693,000     920,000    
Sales   97,531,000 112,316,000 198,095,000 194,287,000        
Purchases   $ 1,787,000 670,000 $ 4,149,000 1,028,000        
SilverTowne                  
Related Party Transaction [Line Items]                  
Number of credit lines | loan   2   2          
Receivable   $ 266,000   $ 266,000     0    
Payables   0   0     242,000    
Sales   4,543,000 4,133,000 8,681,000 7,283,000        
Purchases   876,000 6,280,000 1,337,000 6,379,000        
Goldline Lenders                  
Related Party Transaction [Line Items]                  
Receivable   0   0     0    
Payables   0   0     $ 7,710,000    
Debt instrument, face amount           $ 7,500,000.0      
Other long-term liabilities (related party)           $ 150,000      
Debt instrument, fees (in percentage)           2.00%      
Affiliated entities                  
Related Party Transaction [Line Items]                  
Interest income   1,814,000 627,000 3,751,000 1,173,000        
Interest expense   147,000 202,000 342,000 280,000        
Affiliated entities | Interest income from secured loans receivables                  
Related Party Transaction [Line Items]                  
Interest income   275,000 51,000 489,000 53,000        
Affiliated entities | Interest income from finance products and repurchase arrangements                  
Related Party Transaction [Line Items]                  
Interest income   1,539,000 576,000 3,262,000 1,120,000        
Affiliated entities | Interest expense incurred related to notes payable                  
Related Party Transaction [Line Items]                  
Interest expense   0 1,000 0 1,000        
Affiliated entities | Interest expense incurred related to long-term debt obligation                  
Related Party Transaction [Line Items]                  
Interest expense   $ 147,000 $ 201,000 $ 342,000 $ 279,000