Annual report pursuant to Section 13 and 15(d)

DEFINED CONTRIBTION PLAN (Details Textual)

v3.3.1.900
DEFINED CONTRIBTION PLAN (Details Textual) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Defined Contribution Benefit Plans [Line Items]      
Defined Contribution Plan Maximum Employee Contribution As Percentage Of Base Salary 60.00%    
Maximum Company Match Of Participant Contribution Of Eligible Compensation 6.00%    
Defined Benefit Plan, Contributions by Employer $ 1.9 $ 1.7 $ 1.4
First Three Percent Of Each Participants Contributions [Member]      
Defined Contribution Benefit Plans [Line Items]      
Defined Contribution Plan Employer Matching Contribution To Employee Contribution 50.00%    
Defined Contribution Plan Employee Contributions Percentage Of Eligible Compensation 3.00%    
Second Three Percent Of Each Participants Contributions [Member]      
Defined Contribution Benefit Plans [Line Items]      
Defined Contribution Plan Employer Matching Contribution To Employee Contribution 25.00%    
Defined Contribution Plan Employee Contributions Percentage Of Eligible Compensation 3.00%    
Two Thousand Twelve [Member]      
Defined Contribution Benefit Plans [Line Items]      
Defined Contribution Plan Maximum Employee Contribution As Percentage Of Base Salary 50.00%    
Defined Contribution Plan Employee Contributions Percentage Of Eligible Compensation 5.00%