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Note 14 - Fair Value of Financial Instruments (Tables)
9 Months Ended
Sep. 30, 2014
Fair Value Disclosures [Abstract]  
Fair Value, Liabilities Measured on Recurring Basis [Table Text Block]
   

Level

   

September 30,

2014

   

December 31,

2013

 

Derivative liability:

    3     $ 673     $ -  
Fair Value Inputs, Liabilities, Quantitative Information [Table Text Block]
   

Fair value at

September 30,

2014

   

Valuation

technique

   

Unobservable

input

 

Liabilities:

                       

Derivative liability

  $ 673    

Black-Scholes option pricing model

   

Prevailing interest rates, Company’s stock price volatility, term, dividends

 
                         
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

Derivative Liability

 

Opening balance – December 31, 2013

  $ -  

Purchases, sales, issuances, and settlements

    983  

Transfers into and (or) out of Level 3

     

Change in fair value

    (310 )

Closing balance – September 30, 2014

  $ 673  
Fair Value, by Balance Sheet Grouping [Table Text Block]
   

September 30, 2014

   

December 31, 2013

 
   

Carrying

value

   

Fair value

   

Carrying

value

   

Fair value

 

Cash and cash equivalents

  $ 12,789     $ 12,789     $ 1,031     $ 1,031  

Notes receivable, current

  $ -     $ -     $ 8,450     $ 8,450  

Notes receivable, noncurrent

  $ 13,416     $ 13,416     $ 13,668     $ 13,668  

Line of credit

  $ -     $ -     $ 4,250     $ 4,250