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INVESTMENTS: (Details 2) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost Basis, Total debt securities $ 3,448 $ 2,675
Debt Securities [Member]
   
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost Basis, Within 1 year 304  
Amortized Cost Basis, After 1 year through 5 years 379  
Amortized Cost Basis, After 5 years through 10 years 307  
Amortized Cost Basis, After 10 years 102  
Amortized Cost Basis, Total debt securities 1,092  
Fair Value, Within 1 year 304  
Fair Value, After 1 year through 5 years 389  
Fair Value, After 5 years through 10 years 314  
Fair Value, After 10 years 103  
Fair Value, Total debt securities $ 1,110