Annual report pursuant to Section 13 and 15(d)

Net Capital Requirements (Details)

v3.3.1.900
Net Capital Requirements (Details)
Feb. 29, 2016
USD ($)
Jan. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Net Capital Requirements [Line Items]        
Stockholder's equity     $ 376,002,000 $ 336,460,000
Securities America        
Net Capital Requirements [Line Items]        
Regulatory net capital     6,646,000  
Securities America | Minimum        
Net Capital Requirements [Line Items]        
Alternative minimum net capital requirement     250,000  
Triad        
Net Capital Requirements [Line Items]        
Regulatory net capital     8,063,000  
Triad | Subsequent event        
Net Capital Requirements [Line Items]        
Capital deficiency   $ 1,579,000    
Payments for capital contribution $ 2,500,000      
Investacorp Inc        
Net Capital Requirements [Line Items]        
Regulatory net capital     5,474,000  
KMS        
Net Capital Requirements [Line Items]        
Regulatory net capital     5,774,000  
Ladenburg        
Net Capital Requirements [Line Items]        
Regulatory net capital     22,972,000  
SSN        
Net Capital Requirements [Line Items]        
Regulatory net capital     6,731,000  
Alternative excess amount over net capital requirement     $ 5,792,000  
Indebtedness to net capital     2.09  
SSN | Minimum        
Net Capital Requirements [Line Items]        
Alternative minimum net capital requirement     $ 939,000  
Premier | Regulatory Requirements        
Net Capital Requirements [Line Items]        
Stockholder's equity     1,468,000  
Premier | Regulatory Requirements | Cash        
Net Capital Requirements [Line Items]        
Minimum net capital requirement     250,000  
Premier | Minimum | Regulatory Requirements        
Net Capital Requirements [Line Items]        
Stockholder's equity     1,000,000  
Premier | Minimum | Regulatory Requirements | Cash        
Net Capital Requirements [Line Items]        
Stockholder's equity     $ 250,000