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Note 3 - Acquisition (Tables)
3 Months Ended
Mar. 31, 2015
Business Combinations [Abstract]  
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