SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 1) - USD ($)
$ in Thousands |
Dec. 31, 2016 |
Dec. 31, 2015 |
| Securities owned |
|
|
| Total assets measured at fair value |
$ 16,579
|
$ 25,543
|
| Securities sold not yet purchased |
|
|
| Securities sold not yet purchased |
846
|
713
|
| Common Stock [Member] |
|
|
| Securities owned |
|
|
| Total assets measured at fair value |
2,084
|
17,586
|
| Corporate Bonds [Member] |
|
|
| Securities owned |
|
|
| Total assets measured at fair value |
1,025
|
941
|
| Securities sold not yet purchased |
|
|
| Securities sold not yet purchased |
846
|
713
|
| Partnership Interests [Member] |
|
|
| Securities owned |
|
|
| Total assets measured at fair value |
13,470
|
7,016
|
| Fair Value, Measurements, Recurring [Member] |
|
|
| Securities owned |
|
|
| Total assets measured at fair value |
16,579
|
25,543
|
| Securities sold not yet purchased |
|
|
| Mandatorily redeemable noncontrolling interests issued after November 5, 2003 |
3,214
|
2,330
|
| Contingent consideration |
1,242
|
2,391
|
| Total liabilities measured at fair value |
5,302
|
5,434
|
| Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |
|
|
| Securities owned |
|
|
| Total assets measured at fair value |
1,785
|
17,296
|
| Securities sold not yet purchased |
|
|
| Mandatorily redeemable noncontrolling interests issued after November 5, 2003 |
|
|
| Contingent consideration |
|
|
| Total liabilities measured at fair value |
|
|
| Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |
|
|
| Securities owned |
|
|
| Total assets measured at fair value |
909
|
6,191
|
| Securities sold not yet purchased |
|
|
| Mandatorily redeemable noncontrolling interests issued after November 5, 2003 |
|
|
| Contingent consideration |
|
|
| Total liabilities measured at fair value |
846
|
713
|
| Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |
|
|
| Securities owned |
|
|
| Total assets measured at fair value |
13,885
|
2,056
|
| Securities sold not yet purchased |
|
|
| Mandatorily redeemable noncontrolling interests issued after November 5, 2003 |
3,214
|
2,330
|
| Contingent consideration |
1,242
|
2,391
|
| Total liabilities measured at fair value |
4,456
|
4,721
|
| Fair Value, Measurements, Recurring [Member] | Common Stock [Member] |
|
|
| Securities owned |
|
|
| Total assets measured at fair value |
2,084
|
17,586
|
| Fair Value, Measurements, Recurring [Member] | Common Stock [Member] | Fair Value, Inputs, Level 1 [Member] |
|
|
| Securities owned |
|
|
| Total assets measured at fair value |
1,785
|
17,296
|
| Fair Value, Measurements, Recurring [Member] | Common Stock [Member] | Fair Value, Inputs, Level 2 [Member] |
|
|
| Securities owned |
|
|
| Total assets measured at fair value |
|
|
| Fair Value, Measurements, Recurring [Member] | Common Stock [Member] | Fair Value, Inputs, Level 3 [Member] |
|
|
| Securities owned |
|
|
| Total assets measured at fair value |
299
|
290
|
| Fair Value, Measurements, Recurring [Member] | Corporate Bonds [Member] |
|
|
| Securities owned |
|
|
| Total assets measured at fair value |
1,025
|
941
|
| Securities sold not yet purchased |
|
|
| Securities sold not yet purchased |
846
|
713
|
| Fair Value, Measurements, Recurring [Member] | Corporate Bonds [Member] | Fair Value, Inputs, Level 1 [Member] |
|
|
| Securities owned |
|
|
| Total assets measured at fair value |
|
|
| Securities sold not yet purchased |
|
|
| Securities sold not yet purchased |
|
|
| Fair Value, Measurements, Recurring [Member] | Corporate Bonds [Member] | Fair Value, Inputs, Level 2 [Member] |
|
|
| Securities owned |
|
|
| Total assets measured at fair value |
865
|
941
|
| Securities sold not yet purchased |
|
|
| Securities sold not yet purchased |
846
|
713
|
| Fair Value, Measurements, Recurring [Member] | Corporate Bonds [Member] | Fair Value, Inputs, Level 3 [Member] |
|
|
| Securities owned |
|
|
| Total assets measured at fair value |
160
|
|
| Securities sold not yet purchased |
|
|
| Securities sold not yet purchased |
|
|
| Fair Value, Measurements, Recurring [Member] | Partnership Interests [Member] |
|
|
| Securities owned |
|
|
| Total assets measured at fair value |
13,470
|
7,016
|
| Fair Value, Measurements, Recurring [Member] | Partnership Interests [Member] | Fair Value, Inputs, Level 1 [Member] |
|
|
| Securities owned |
|
|
| Total assets measured at fair value |
|
|
| Fair Value, Measurements, Recurring [Member] | Partnership Interests [Member] | Fair Value, Inputs, Level 2 [Member] |
|
|
| Securities owned |
|
|
| Total assets measured at fair value |
44
|
5,250
|
| Fair Value, Measurements, Recurring [Member] | Partnership Interests [Member] | Fair Value, Inputs, Level 3 [Member] |
|
|
| Securities owned |
|
|
| Total assets measured at fair value |
$ 13,426
|
$ 1,766
|