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NOTES PAYABLE - BANK (Details)
In Thousands, unless otherwise specified
 1 Months Ended 1 Months Ended 12 Months Ended 1 Months Ended
Dec. 31, 2012
USD ($)
Dec. 31, 2012
EUR (€)
Dec. 31, 2011
Dec. 31, 2010
May 31, 2011
United States [Member]
Old Line of Credit [Member]
USD ($)
May 31, 2011
United States [Member]
Old Line of Credit [Member]
Prime Rate Loans [Member]
May 31, 2011
United States [Member]
Old Line of Credit [Member]
LIBOR Loans [Member]
May 31, 2011
United States [Member]
Old Line of Credit [Member]
Standby Letters of Credit [Member]
USD ($)
May 31, 2011
United States [Member]
Old Line of Credit [Member]
Certificates of Deposit [Member]
USD ($)
May 31, 2011
United States [Member]
New Line of Credit [Member]
USD ($)
Dec. 31, 2012
United States [Member]
New Line of Credit [Member]
USD ($)
Dec. 31, 2011
United States [Member]
New Line of Credit [Member]
USD ($)
Oct. 31, 2011
United States [Member]
New Line of Credit [Member]
USD ($)
Jul. 31, 2011
United States [Member]
New Line of Credit [Member]
USD ($)
May 31, 2011
United States [Member]
New Line of Credit [Member]
Minimum [Member]
Dec. 31, 2011
United States [Member]
New Line of Credit [Member]
Standby Letters of Credit [Member]
USD ($)
May 31, 2011
United States [Member]
New Line of Credit [Member]
Standby Letters of Credit [Member]
USD ($)
May 31, 2011
United States [Member]
New Line of Credit [Member]
Certificates of Deposit [Member]
USD ($)
May 31, 2012
Europe [Member]
New Line of Credit [Member]
USD ($)
May 31, 2012
Europe [Member]
New Line of Credit [Member]
EUR (€)
Sep. 30, 2011
Europe [Member]
New Line of Credit [Member]
USD ($)
Sep. 30, 2011
Europe [Member]
New Line of Credit [Member]
EUR (€)
Dec. 31, 2012
Europe [Member]
New Line of Credit [Member]
USD ($)
Dec. 31, 2012
Europe [Member]
New Line of Credit [Member]
EUR (€)
Dec. 31, 2011
Europe [Member]
New Line of Credit [Member]
USD ($)
Debt Instrument [Line Items]                                                  
Line of credit, maximum borrowing amount         $ 8,000         $ 9,000     $ 11,000 $ 10,000         $ 659 € 500 $ 395 € 300      
Pledged assets used to secure credit facility               775 3,500             775 775 3,500              
Discretionary reserve         500                                        
Cash held as collateral                   3,500   3,500   3,500                      
Accounts receivable and unbilled receivables used to secure credit facility                     5,405                       3,984    
Credit facility, expiration date                   May 25, 2013                 Jan. 01, 2014 Jan. 01, 2014 Jan. 01, 2013 Jan. 01, 2013      
Debt instrument, variable interest reference rate             LIBOR     LIBOR                              
Debt instrument, interest rate basis points above reference rate           1.00% 3.50%     4.50%         1.75%                    
Debt instrument, effective interest rate                     6.25%                            
Weighted average interest rate 6.25% 6.25% 6.35% 6.08%                                          
Costs associated with obtaining the new credit facility                     650                            
Success fee to independent lender                     300                            
Success fee payments                     13                            
Credit facility, amount outstanding                     8,581 8,086                            
Credit facility, remaining borrowing capacity                     201 262                     659 500  
Guarantees $ 83 € 63                                     $ 83 € 63      
Debt instrument, stated interest rate per annum                                             6.00% 6.00% 6.00%