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Note 17 - Financial Instruments (Tables)
6 Months Ended
Jun. 30, 2014
Note 17 - Financial Instruments (Tables) [Line Items]  
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block]
Counterparty
 
SWAP Number (Nr)
   
Notional Amount
 
Period (Years)
Effective Date
 
Interest Rate Payable
   
Fair Value - Liability
 
         
June 30,
2014
             
December 31,
2013
   
 
June 30,
 2014
 
ALPHA BANK
    1     $ 20,000  
7
March 30, 2008
    10.85 %     (1,697 )     (1,134 )
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
Warrants
Outstanding
 
Term
 
Warrant Exercise
Price
   
Fair Value – Liability
 
June 30, 2014
           
December 31, 2013
   
June 30, 2014
 
  5,330,000  
5 years
  $ 2.50       -       (7,157 )
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]
Liability Financial Instruments
 
 
December 31, 2013
 
June 30, 2014
 
Financial Instruments not designated as hedging instruments
 
 
Balance Sheet
Location
 
Fair
Value
 
Balance Sheet
Location
 
Fair
Value
 
Balance Sheet
Location
 
Fair
Value
 
Balance Sheet
Location
 
Fair
Value
 
Interest rate
swaps
Current liabilities –
Financial instruments
  $ 1,135  
Non-Current liabilities –Financial instruments
  $ 562  
Current liabilities –
Financial instruments
  $ 1,134  
Non-Current liabilities –
Financial instruments
  $ -  
Warrants
-
  $ -  
-
  $ -  
-
  $ -  
-
  $ 7,157  
Derivative Instruments, Gain (Loss) [Table Text Block]
Financial Instruments not
designated as hedging instruments
Location in Statement of Comprehensive Income
June 30, 2013
 
June 30, 2014
 
Interest rate swaps- change in fair value
Gain on financial instruments included under ‘Net loss on financial instruments’
  $ 1,388     $ 563  
Interest rate swaps– realized loss
Net loss on derivative financial instruments
  $ (1,448 )   $ (564 )
Warrants- change in fair value
Loss on financial instruments included under ‘Net loss on financial instruments’
  $ -     $
(679
)
Total
    $ (60 )   $
(680
)
Fair Value, Measurements, Recurring [Member]
 
Note 17 - Financial Instruments (Tables) [Line Items]  
Fair Value, Assets Measured on Recurring Basis [Table Text Block]
As of December 31, 2013
       
Fair Value Measurement at Reporting Date Using Quoted Prices in
 
   
Total
   
Active
Markets for
Identical Assets
(Level 1)
   
Significant
Other
Observable
Inputs
(Level 2)
   
Significant
Other
Unobservable
Inputs
(Level 3)
 
Interest rate swaps
  $ 1,697       -     $ 1,697     $ -  
 As of June 30, 2014
       
Fair Value Measurement at Reporting Date Using Quoted Prices in
 
   
Total
   
Active
Markets for
Identical Assets
(Level 1)
   
Significant
Other
Observable
Inputs
(Level 2)
   
Significant
Other
Unobservable
Inputs
(Level 3)
 
Interest rate swaps 
  $ 1,134       -     $ 1,134     $ -  
Warrants
  $
7,157
      -     $ -     $
7,157