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FAIR VALUE MEASUREMENTS (Tables)
3 Months Ended
Mar. 31, 2017
FAIR VALUE MEASUREMENTS  
Schedule of the valuation of financial instruments measured at fair value on a recurring basis
    Fair Value Measurements at March 31, 2017 with:  
(in thousands)   Total     Quoted prices in
active markets
for
identical assets
    Significant
other
observable
inputs
    Significant 
unobservable
inputs
 
          (Level 1)     (Level 2)     (Level 3)  
Assets:                                
Available-for-sale securities:                                
Municipal Obligations   $ 11,174     $     $ 11,174     $  
Corporate Obligations                        
    $ 11,174     $     $ 11,174     $  
Investments measured at Net Asset Value - Trading securities   $ 5,637                          
 
    Fair Value Measurements at December 31, 2016 with:  
(in thousands)   Total     Quoted prices in
active markets
for
identical assets
    Significant
other
observable
inputs
    Significant 
unobservable
inputs
 
          (Level 1)     (Level 2)     (Level 3)  
Assets:                                
Available-for-sale securities:                                
Municipal Obligations   $ 9,330     $     $ 9,330     $  
Corporate Obligations                        
    $ 9,330     $     $ 9,330     $  
Investments measured at Net Asset Value - Trading securities   $ 5,547