LONG-TERM INCENTIVE COMPENSATION (Details Textual) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Amount of shares purchased in the open market			$ 1,404,000	$ 1,700,000
Purchases of treasury stock, shares	35,891
Remaining unrecognized compensation cost recognized over a remaining weighted average period			2 years 6 months
Accrued liability	$ 50,000		$ 50,000		$ 79,000
Shares Issued, Shares, Share-based Payment Arrangement, Forfeited			56,625
Stock Issued During Period, Value, Restricted Stock Award, Forfeitures			$ 1,300,000
Restricted Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Anti-dilutive restricted shares	89,000	139,000	87,000	186,000
Mutual Fund [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expense related to mutual fund share incentive awards			$ 27,000	$ (100,000)
Restricted Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total number of shares that may be issued under the stock based compensation Plan (including predecessor plans to the Plan)	5,398,100		5,398,100
Shares remain available for issuance	642,000		642,000
Remaining unrecognized compensation cost	$ 13,200,000		$ 13,200,000
Nonvested restricted shares	491,625		491,625		396,598
Expense related to mutual fund share incentive awards	$ 1,380,000	$ 1,722,000
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period	350,000
Canadian Plan | Westwood International Advisors Inc
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Amount of shares purchased in the open market			$ 700,000
Purchases of treasury stock, shares			27,474
Mutual Fund Share Incentive Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Service period of mutual fund share incentive award			3 years
Expense related to mutual fund share incentive awards	$ 9,000	$ 12,000