DEBT (Details)
 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended
Jan. 31, 2013
USD ($)
Jan. 31, 2012
USD ($)
Jan. 31, 2011
USD ($)
Jan. 31, 2013
Bond Payable [Member]
USD ($)
Jan. 31, 2012
Bond Payable [Member]
USD ($)
Jan. 31, 2013
Bond Payable [Member]
Minimum [Member]
Jan. 31, 2013
Bond Payable [Member]
Maximum [Member]
Jan. 31, 2013
Note payable [Member]
USD ($)
Jan. 31, 2013
Note payable [Member]
EUR (€)
Jan. 31, 2012
Note payable [Member]
USD ($)
Jan. 31, 2013
Equipment Note [Member]
USD ($)
Jan. 31, 2012
Equipment Note [Member]
USD ($)
Jan. 31, 2013
Line of credit [Member]
USD ($)
Jan. 31, 2013
Line of credit [Member]
EUR (€)
Jan. 31, 2012
Line of credit [Member]
USD ($)
Jan. 31, 2013
Domestic and foreign unsecured lines of credit [Member]
USD ($)
Jan. 31, 2013
Domestic unsecured line of credit [Member]
USD ($)
Jan. 31, 2012
Domestic unsecured line of credit [Member]
USD ($)
Jan. 31, 2013
Foreign unsecured line of credit [Member]
USD ($)
Jan. 31, 2013
Foreign unsecured line of credit [Member]
EUR (€)
Jan. 31, 2012
Foreign unsecured line of credit [Member]
USD ($)
Jan. 31, 2012
Foreign unsecured line of credit [Member]
EUR (€)
Line of Credit Facility [Line Items]                                            
Available borrowing capacity under lines of credit                               $ 4,407,340     $ 407,340 € 300,000    
Amount outstanding under lines of credit                                 0 0 0   265,581 202,997
Amount committed to standby letters of credit 805,304                                          
Debt Instrument [Line Items]                                            
Total long term debt 2,336,535 2,978,901   1,929,195 2,163,037     407,340   523,320 0 26,963 0   265,581              
Less current portion 369,622 657,216                                        
Long term debt less current maturities 1,966,913 2,321,685                                        
Fair market value of interest rate swap liability 302,972 366,286                                        
Long-term portion 2,269,885 2,687,971                                        
Principal payment       58,460       33,945 25,000   13,482   265,581 202,997                
Rate Basis       LIBOR                 EURIBOR EURIBOR                
Basis spread on variable rate (in basis points)           0.16% 2.50%           0.70% 0.70%                
Debt maturity date       Apr. 30, 2021       Jan. 31, 2016 Jan. 31, 2016   Mar. 31, 2012   Jan. 31, 2012 Jan. 31, 2012                
Effective interest rate (in hundredths)       2.50% 2.50%     3.82% 3.82%   0.00%       1.41%              
Interest rate swap agreement [Abstract]                                            
Term of interest rate swap 15 years                                          
Variable rate basis ninety-day LIBOR                                          
Fixed interest rate (in hundredths) 4.87%                                          
Effective fixed interest rate (in hundredths) 7.01%                                          
Interest rate floor provision (in hundredths) 2.50%                                          
Decrease in equity to date resulting from fair value of interest rate swap agreement 190,873 230,760 172,814                                      
Maturities of short-term and long-term debt are as follows [Abstract]                                            
Year Ending January 31, 2014 369,622                                          
Year Ending January 31, 2015 369,622                                          
Year Ending January 31, 2016 369,622                                          
Year Ending January 31, 2017 233,842                                          
Year Ending January 31, 2018 233,842                                          
Year Ending January 31, Thereafter $ 759,985