AQUISITIONS (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands						3 Months Ended			9 Months Ended
		Jul. 03, 2017	Jun. 01, 2017	Apr. 13, 2017	May 04, 2016	Sep. 30, 2017	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Acquisition consideration payable											$ 10,381
Goodwill						100,903	100,903		100,903		48,903
Total revenues						92,426		$ 56,966	211,999	$ 97,173
Net income (loss)						122		8,374	17,386	9,717
Common Stock [Member]
Net income (loss)
Principal Investments - United Online Segment [Member]
Increase in goodwill									1,352
Cash consideration paid									1,352
Goodwill						15,727	15,727		15,727		14,375
Total revenues						12,327		15,646	38,724	3,423
Capital Markets Reportable Segment [Member]
Goodwill						79,488	79,488		79,488		$ 28,840
Total revenues						63,679		10,063	105,296	22,799
FBR & Co. ("FBR") [Member]
Share price (in dollars per share)			$ 14.70
Goodwill			$ 14,528
Number of shares issued for acquisition			4,831,633
Total consideration			$ 73,471
Fair value of total purchase consideration	[1]		$ 2,446
Revenues									37,745
Net income (loss)									12,706
FBR & Co. ("FBR") [Member] | Capital Markets Reportable Segment [Member]
Increase in goodwill									14,528
FBR & Co. ("FBR") [Member] | Selling, General and Administrative Expenses [Member]
Acquisition related costs									1,389
FBR & Co. ("FBR") [Member] | Richard J. Hendrix [Member]
Acquisition related costs									3,551
Payroll and severance costs									9,096
United Online Inc [Member]
Share price (in dollars per share)					$ 11.00
Merger consideration					$ 169,354
Goodwill					$ 14,375
Acquisition related costs						12,327		4,944	38,724	14,220
Revenues						$ 92,461		$ 111,340	320,546	$ 298,118
Dialectic Capital Management, L.P., Dialectic Capital, LLC and John Fichthorn [Member] | Asset Purchase and Assignment Agreement [Member]
Cash consideration paid				$ 700
Acquisition related costs				$ 714
Number of shares issued for acquisition				158,484
Total consideration				$ 2,652
Fair value of total purchase consideration				$ 1,952
Dialectic Capital Management, L.P., Dialectic Capital, LLC and John Fichthorn [Member] | Capital Markets Reportable Segment [Member]
Increase in goodwill									2,552
Acquisition related costs									392
Expected overhead synergies									$ 100
Delaware corporation ("Wunderlich") [Member] | Merger Agreement [Member]
Cash consideration paid		$ 29,737
Goodwill		33,568
Payroll and severance costs							1,387
Total consideration		$ 66,043
Revenues							20,412
Net income (loss)							$ (1,928)
Delaware corporation ("Wunderlich") [Member] | Merger Agreement [Member] | Common Stock [Member]
Number of shares issued for acquisition		1,974,812
Number of shares issued held in escrow account		387,365							387,365
Delaware corporation ("Wunderlich") [Member] | Merger Agreement [Member] | Warrant [Member]
Number of shares issued for acquisition		821,816
Number of shares issued held in escrow account		167,352
Delaware corporation ("Wunderlich") [Member] | Selling, General and Administrative Expenses [Member] | Merger Agreement [Member]
Acquisition related costs		$ 53

[1] Outstanding FBR restricted stock awards at June 1, 2017, the date of the acquisition, were adjusted in accordance with the Merger Agreement with the right to receive 0.671 shares of the Company's common stock for each outstanding FBR stock award unit. The fair value of the FBR restricted stock awards at June 1, 2017 was determined based on the closing price of the Company's common stock of $14.70 on June 1, 2017. The fair value of the FBR restricted stock awards were apportioned as purchase consideration based on service provided to FBR as of June 1, 2017 with the remaining fair value of the FBR restricted stock awards to be recognized prospectively over the restricted stock and FBR restricted stock awards remaining vesting period.