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