STOCK-BASED COMPENSATION (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Deferred Compensation Arrangement with Individual, Shares Authorized for Issuance	2,985,000
Shares available to be issued under stock-based incentive plan	968,749
Options granted, vesting conditions	Most options granted since 2005 contain performance-based vesting conditions.
Outstanding restricted shares	279,727
Stock based compensation expense	$ 2,261,000	$ 1,485,000	$ 2,057,000
Restricted stock weighted average period	1 year 4 months 24 days
Employee Stock Option [Member]
Income tax benefit related to options	$ 177,000	102,000	49,000
Restricted Stock [Member]
Unearned compensation related to restricted stock	3,878,000	1,749,000	1,568,000
Income tax benefit related to options	$ 721,000	$ 1,069,000	$ 861,000
Maximum [Member]
Options granted	10 years