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ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 4)
12 Months Ended
Dec. 31, 2013
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Restricted stock awards
 
Stock-Based Compensation  
Types of vesting schedules (in count) 3
Service-based restricted stock awards
 
Stock-Based Compensation  
Vesting period of awards 4 years
Performance-based restricted stock awards
 
Stock-Based Compensation  
Vesting period of awards 3 years
Market-based restricted stock awards
 
Stock-Based Compensation  
Vesting period of awards 3 years
Stock options
 
Stock-Based Compensation  
Vesting period of awards 4 years