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STOCK-BASED COMPENSATION (Detail Textuals 2) - Restricted Stock - USD ($)
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Unrecognized compensation cost related to non-vested restricted shares $ 8,646,000  
Unrecognized compensation cost related to non-vested restricted shares recognized period 3 years 9 months  
Tax benefits for compensation tax deductions in excess of compensation expense $ 545,000 $ 580,000