Quarterly report pursuant to Section 13 or 15(d)

Notes Payable - Components of Notes Payable (Details)

v3.7.0.1
Notes Payable - Components of Notes Payable (Details) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Debt Instrument [Line Items]    
Total $ 24,563 $ 26,417
Unamortized discount 760 872
Notes payable to KMS' former shareholders    
Debt Instrument [Line Items]    
Unamortized discount 189 221
Notes payable to SSN's former shareholders    
Debt Instrument [Line Items]    
Unamortized discount 570 651
Notes Payable | Notes payable to clearing firm under forgivable loans    
Debt Instrument [Line Items]    
Long-term debt 4,285 4,285
Notes Payable | Note payable under subsidiary's term loan with bank    
Debt Instrument [Line Items]    
Long-term debt 47 153
Notes Payable | Note payable under subsidiary's revolver with bank    
Debt Instrument [Line Items]    
Long-term debt 506 620
Notes Payable | Notes payable by subsidiary to certain former shareholders of Highland    
Debt Instrument [Line Items]    
Long-term debt 6,738 6,738
Notes Payable | Notes payable to KMS' former shareholders    
Debt Instrument [Line Items]    
Long-term debt 3,383 3,852
Notes Payable | Notes payable to SSN's former shareholders    
Debt Instrument [Line Items]    
Long-term debt $ 9,604 $ 10,769