Quarterly report pursuant to Section 13 or 15(d)

Notes Payable - Narrative (Details)

v3.8.0.1
Notes Payable - Narrative (Details) - USD ($)
1 Months Ended 3 Months Ended
May 07, 2018
Dec. 12, 2017
Nov. 21, 2017
Apr. 21, 2017
Feb. 28, 2018
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Line of Credit Facility [Line Items]                
Commissions           $ 163,286,000 $ 130,050,000  
6.5% Senior notes | Senior Notes                
Line of Credit Facility [Line Items]                
Face amount of debt   $ 76,569,000 $ 72,500,000          
Interest rate     6.50%          
Redemption percentage     100.00%          
Option to exercise amount   4,069,000            
Underwriters and offering expenses   3,313,000            
Commissions   $ 1,187,000            
Debt sold         $ 25,000,000 4,536,000    
Commissions receivable, percentage         2.00%      
Securities America | Amended and Restated Loan Agreement | Term Loan                
Line of Credit Facility [Line Items]                
Face amount of debt       $ 8,000,000        
Interest rate       5.75%        
Revolving Credit Facility                
Line of Credit Facility [Line Items]                
Availability under revolving credit facility           40,000,000    
Face amount of debt           40,000,000    
Revolving Credit Facility | Securities America | Amended and Restated Loan Agreement | Line of Credit                
Line of Credit Facility [Line Items]                
Availability under revolving credit facility           1,000,000    
Basis spread on variable rate       2.25%        
Fair Value | Level 2                
Line of Credit Facility [Line Items]                
Notes payable, net           $ 100,732,000   $ 99,129,000
Subsequent Event | Nfs Forgivable Loan                
Line of Credit Facility [Line Items]                
Term 6 years              
Forgiveness, principal $ 2,222,000