STOCK-BASED COMPENSATION (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Deferred Compensation Arrangement with Individual, Shares Authorized for Issuance	2,985,000
Shares available to be issued under stock-based incentive plan	1,120,000
Options granted, vesting conditions	Most options granted since 2005 contain performance-based vesting conditions.
Outstanding restricted shares	285,326
Compensation expense	$ 1,485,000	$ 2,058,000	$ 1,041,000
Restricted stock weighted average period	2 years
Employee Stock Option [Member]
Income tax benefit related to options	$ 102,000	49,000
Restricted Stock [Member]
Unearned compensation related to restricted stock	1,749,000	1,568,000	2,129,000
Income tax benefit related to options	$ 1,069,000	$ 861,000	$ 152,000
Maximum [Member]
Options granted	10 years
Maximum [Member] | Employee Stock Option [Member]
Options granted	0 years
Minimum [Member]
Options granted	0 years
Minimum [Member] | Employee Stock Option [Member]
Options granted	0 years