Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions (Details)

v3.4.0.3
Related Party Transactions (Details) - USD ($)
 3 Months Ended 9 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2016
Mar. 31, 2015
Jul. 23, 2015
Jun. 30, 2015
Feb. 28, 2015
Oct. 09, 2014
Jun. 18, 2014
Related Party Transaction [Line Items]                  
Sales $ 161,543,000 $ 101,371,000 $ 584,399,000 $ 287,100,000          
Purchases 2,412,000 1,817,000 37,405,000 8,395,000          
Receivable 2,175,000   2,175,000     $ 1,376,000      
Payables 800,000   800,000     10,000      
Income (loss) from equity method investment 107,000   613,000 0          
Equity method investment 7,285,000   7,285,000     2,000,000      
Income taxes payable to Former Parent 510,000   510,000     0      
Income taxes receivable from Former Parent 0   0     1,095,000      
Equity method investee                  
Related Party Transaction [Line Items]                  
Sales 154,848,000 99,006,000 558,804,000 281,653,000          
Purchases 1,170,000 77,000 5,595,000 117,000          
Receivable 777,000   777,000     279,000      
Payables 0   0     0      
Stack Bowers Galleries                  
Related Party Transaction [Line Items]                  
Short term loan receivable 0   0           $ 2,600,000
Rate of interest (percentage)                 5.50%
Calzona                  
Related Party Transaction [Line Items]                  
Sales 0 0 0 157,000          
Purchases 0 0 0 0          
SGI (Former Parent)                  
Related Party Transaction [Line Items]                  
Receivable 38,000   38,000     1,095,000      
Payables 760,000   760,000     0      
Secondment fees 38,000 0 113,000 75,000          
Receivable from related party 38,000   38,000     0      
W.A.Richardson Builders, LLC (WAR)                  
Related Party Transaction [Line Items]                  
Contractual obligation             $ 1,500,000    
Fees payable, percentage             5.00%    
Former owner                  
Related Party Transaction [Line Items]                  
Payment related to royalty agreement with former owner 0 62,000 21,000 194,000          
Royalty expense 0   0     254,000      
Stack's Bowers Numismatics, LLC                  
Related Party Transaction [Line Items]                  
Sales 6,695,000 2,365,000 25,595,000 5,290,000          
Purchases 1,242,000 1,740,000 31,810,000 8,278,000          
Receivable 1,360,000   1,360,000     2,000      
Payables 40,000   40,000     $ 10,000      
Interest income 593,000 398,000 1,773,000 859,000          
Former Parent SGI Plans                  
Related Party Transaction [Line Items]                  
Other Commitment $ 150,000   $ 150,000            
Percentage of professional working time, maximum 20.00%   20.00%            
July 23, 2015 Loan Agreement | Stack Bowers Galleries                  
Related Party Transaction [Line Items]                  
Short term loan receivable $ 1,400,000   $ 1,400,000   $ 2,500,000        
October 9, 2014 Loan Agreement | Stack Bowers Galleries                  
Related Party Transaction [Line Items]                  
Short term loan receivable 0   0         $ 16,000,000  
Interest Income from Loan Receivable | Stack's Bowers Numismatics, LLC                  
Related Party Transaction [Line Items]                  
Interest income 16,000 99,000 48,000 222,000          
Interest Income from Finance Products | Stack's Bowers Numismatics, LLC                  
Related Party Transaction [Line Items]                  
Interest income $ 577,000 $ 299,000 $ 1,725,000 $ 637,000