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Notes Payable (Details Textual) - Subsequent Event Type [Domain]
€ in Thousands, $ in Thousands
1 Months Ended 3 Months Ended 6 Months Ended
Feb. 13, 2015
USD ($)
Jun. 30, 2015
USD ($)
shares
Jun. 30, 2015
USD ($)
shares
Feb. 13, 2015
EUR (€)
Debt Instrument [Line Items]        
Debt Conversion, Converted Instrument, Amount   $ 4,500    
Debt Conversion, Converted Instrument, Shares Issued | shares   701,033    
Interest Expense, Debt   $ 563 $ 563  
Write off of Deferred Debt Issuance Cost   234 234  
Mortgages [Member]        
Debt Instrument [Line Items]        
Interest Expense, Debt   600 900  
Write off of Deferred Debt Issuance Cost   100 300  
Second Mortgage [Member]        
Debt Instrument [Line Items]        
Short-term Debt $ 12,000     € 7,750
Senior Convertible Notes [Member]        
Debt Instrument [Line Items]        
Debt Conversion, Converted Instrument, Amount     $ 4,500  
Debt Conversion, Converted Instrument, Shares Issued | shares     701,033  
Debt Instrument, Maturity Date     Aug. 15, 2017  
Debt Instrument, Convertible, Conversion Ratio     6.60  
Debt Conversion, Description     701,033  
Escrow Deposit   $ 1,800 $ 1,800  
Notes Payable Current, Unsecured, Issued One [Member]        
Debt Instrument [Line Items]        
Debt Instrument, Interest Rate, Stated Percentage   12.00% 12.00%  
Notes Payable Current Unsecured Issued Two [Member]        
Debt Instrument [Line Items]        
Debt Instrument, Interest Rate, Stated Percentage   6.00% 6.00%  
Notes Payable Current, Unsecured, Issued Three [Member]        
Debt Instrument [Line Items]        
Debt Instrument, Interest Rate, Stated Percentage   8.00% 8.00%  
Unsecured Notes Payable [Member]        
Debt Instrument [Line Items]        
Debt Instrument, Interest Rate, Stated Percentage   6.00% 6.00%  
Bridge Loan [Member]        
Debt Instrument [Line Items]        
Initial Loan Amount Received 5,000     € 3,250
Deferred Finance Costs, Net $ 100      
Bridge Loan [Member] | Second Mortgage [Member]        
Debt Instrument [Line Items]        
Debt Instrument, Interest Rate, Stated Percentage 12.00%     12.00%
Debt Instrument, Term 1 year 6 months      
12% Coupon [Member] | Mortgages [Member]        
Debt Instrument [Line Items]        
Interest Expense, Debt   $ 300 $ 600