Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions (Details)

v3.8.0.1
Related Party Transactions (Details) - USD ($)
 3 Months Ended
Aug. 31, 2016
Sep. 30, 2017
Sep. 30, 2016
Jun. 30, 2017
Related Party Transaction [Line Items]        
Sales   $ 89,553,000 $ 142,533,000  
Purchases   2,846,000 13,900,000  
Receivable   5,227,000   $ 0
Payables   8,943,000   2,353,000
Income (loss) from equity method investment   57,000 (14,000)  
Equity method investment   7,524,000   7,467,000
Note payable - related party   0   500,000
Unamortized loan commitment and origination fees and unamortized discounts or premiums   65,000   72,000
Other long-term liabilities (related party)   1,123,000   1,117,000
Former Parent        
Related Party Transaction [Line Items]        
Sales   4,432,000 6,668,000  
Purchases   2,389,000 11,199,000  
Receivable   2,854,000   0
Payables   0   27,000
Former Parent | September 29, 2017Loan Agreement        
Related Party Transaction [Line Items]        
Short term loan receivable   2,200,000   0
Equity method investee        
Related Party Transaction [Line Items]        
Sales   81,971,000 129,076,000  
Purchases   358,000 89,000  
Receivable   2,373,000   0
Payables   0   558,000
SilverTowne        
Related Party Transaction [Line Items]        
Sales   3,150,000 6,789,000  
Purchases   99,000 2,612,000  
Receivable   0   0
Payables   851,000   1,768,000
Short term notes payable   500,000    
Accounts receivable   300,000    
SilverTowne | Interest Income from Loan Receivable        
Related Party Transaction [Line Items]        
Interest income   2,000 10,000  
SilverTowne | Interest Expense Incurred Related To Notes Payable [Member]        
Related Party Transaction [Line Items]        
Interest expense   2,000 10,000  
Affiliated entities        
Related Party Transaction [Line Items]        
Interest income   546,000 678,000  
Interest expense   75,000 10,000  
Affiliated entities | Interest Income from Finance Products        
Related Party Transaction [Line Items]        
Interest income   544,000 668,000  
Affiliated entities | Interest Expense Incurred Related to Long-term Debt Obligation        
Related Party Transaction [Line Items]        
Interest expense   73,000 $ 0  
Goldline Lenders        
Related Party Transaction [Line Items]        
Receivable   0   0
Payables   8,092,000   $ 0
Long-term Debt   6,818,000    
Debt instrument, face amount   7,500,000    
Unamortized loan commitment and origination fees and unamortized discounts or premiums   682,000    
Other long-term liabilities (related party)   534,000    
Interest Payable   100,000    
Line of Credit | Former Parent        
Related Party Transaction [Line Items]        
Long-term Debt   $ 2,200,000    
SilverTowne Mint | Commercial Paper [Member]        
Related Party Transaction [Line Items]        
Liabilities incurred for the acquisition $ 500,000      
Debt instrument, term (years) 1 year