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Note 4 - Acquisition (Tables)
6 Months Ended
Jun. 30, 2016
Notes Tables  
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]
Assets acquired:
 
 
 
 
Property and equipment
  $ 3,388  
Liabilities assumed:
 
 
 
 
Deferred rental income
    266  
Total consideration
  $ 3,122