RELATED PARTY TRANSACTIONS (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
UCITS Fund
Related Party Transaction [Line Items]
Fees earned from related party	$ 1,000,000	$ 1,100,000	$ 3,300,000	$ 2,800,000
Fees unpaid from related party	329,000		329,000		$ 423,000
Private Equity Investments [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Purchases from Related Party	162,000		767,000
Trust
Related Party Transaction [Line Items]
Due from related party	89,000		89,000		$ 98,000
Fees earned from related party	$ 89,000	$ 92,000	$ 276,000	$ 277,000