Annual report pursuant to Section 13 and 15(d)

Financing Agreements (Subordinate Debt Financing) (Details)

v3.10.0.1
Financing Agreements (Subordinate Debt Financing) (Details) - USD ($)
12 Months Ended
Aug. 28, 2017
Jun. 30, 2018
Debt Instrument [Line Items]    
Interest expense, notes payable   $ 648,000
Percentage of total expense recognized   4.70%
Effective rate of interest   9.25%
Goldline, LLC    
Debt Instrument [Line Items]    
Liabilities incurred for the acquisition $ 7,500,000  
Borrowings due on demand   $ 7,200,000
Unamortized debt issuance expense   274,000
Debt issuance costs, net   $ 210,000
Affiliates | Goldline, LLC    
Debt Instrument [Line Items]    
Liabilities incurred for the acquisition 4,550,000  
Chief Executive Officer, Director and principal stockholder | Gregory N. Roberts | Goldline, LLC    
Debt Instrument [Line Items]    
Liabilities incurred for the acquisition 587,500  
Principal stockholder | William D. Richardson | Goldline, LLC    
Debt Instrument [Line Items]    
Liabilities incurred for the acquisition 587,500  
Chairman of the Board and Director | Jeffrey D. Benjamin | Goldline, LLC    
Debt Instrument [Line Items]    
Liabilities incurred for the acquisition 1,000,000  
Director | Ellis Landau | Goldline, LLC    
Debt Instrument [Line Items]    
Liabilities incurred for the acquisition 375,000  
Director | William Montgomery | Goldline, LLC    
Debt Instrument [Line Items]    
Liabilities incurred for the acquisition 1,500,000  
Director | Jess Ravich | Goldline, LLC    
Debt Instrument [Line Items]    
Liabilities incurred for the acquisition 500,000  
Non-affiliated members | Goldline, LLC    
Debt Instrument [Line Items]    
Liabilities incurred for the acquisition $ 2,950,000  
Silver Bow Ventures, LLC | Gregory N. Roberts    
Debt Instrument [Line Items]    
Ownership percentage   50.00%
Percentage of indebtedness (percentage)   50.00%
Silver Bow Ventures, LLC | William D. Richardson    
Debt Instrument [Line Items]    
Ownership percentage   50.00%
Percentage of indebtedness (percentage)   50.00%
Libra Securities Holdings, LLC | Jess Ravich    
Debt Instrument [Line Items]    
Ownership percentage   100.00%
Loans Payable | Goldline, LLC    
Debt Instrument [Line Items]    
Stated interest rate (in percentage) 8.50%  
Debt instrument, additional interest, percentage of total principal (in percentage) 3.00%  
Debt instrument, additional interest, percentage of cumulative three year EBITDA (in percentage) 10.00%  
Debt instrument, additional interest, percentage of cumulative three year EBITDA, amount $ 10,000,000  
Debt instrument, term (years) 3 years