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Note 11 - Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

Year Ending December 31,

 

Amount

 

2015

  $ 1,821  

2016

    1,745  

2017

    1,722  

2018

    78  

2019

    2  

Future minimum rental payments

  $ 5,368  
Schedule of Future Minimum Lease Payments for Capital Leases [Table Text Block]

Year Ending December 31,

Amount

2015

  $ 167  

2016

    211  

2017

    24  

Future minimum lease payments

  $ 402