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Note 14 - Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2012
Fair Value, Assets Measured on Recurring Basis [Table Text Block]
 
Investments at Fair Value as of December 31, 2012
 
(in thousands)
Level 1
 
Level 2
   
Level 3
   
Total
 
                     
Certificates of Deposit
 
$
250
   
$
-
   
$
-
   
$
250
 
                                 
Total investments at fair value
 
$
250
   
$
-
   
$
-
   
$
250
 
 
Investments at Fair Value as of December 31, 2011
 
(in thousands)
Level 1
 
Level 2
   
Level 3
   
Total
 
                     
Certificates of Deposit
 
$
6,500
   
$
-
   
$
-
   
$
6,500
 
                                 
Total investments at fair value
 
$
6,500
   
$
-
   
$
-
   
$
6,500