Fair value of financial instruments	12 Months Ended
Jan. 31, 2013
Fair Value of Financial Instruments [Abstract]
Fair value of financial instruments[Text Block]	Note 12 - Fair value of financial instruments At January 31, 2013, interest rate swap agreements were in effect with a notional value of $9 million that matures November 30, 2013 and a value of $1.3 million that matures December 2021. The swap agreements, which reduces the exposure to market risks from changing interest rates, exchanges the variable rate to fixed interest rate payments of 2.23% plus LIBOR margin and 2.47%, respectively. The exchange-traded swaps are valued on a recurring basis using quoted market prices and classified within Level 2 of the fair value hierarchy because the exchange is not deemed to be an active market. The derivative mark to market of $219 thousand was classified as a long-term liability on the balance sheet.

Fair value of financial instruments

12 Months Ended

Jan. 31, 2013

Fair Value of Financial Instruments [Abstract]

Fair value of financial instruments[Text Block]

Note 12 - Fair value of financial instruments

At January 31, 2013, interest rate swap agreements were in effect with a notional value of $9 million that matures November 30, 2013 and a value of $1.3 million that matures December 2021. The swap agreements, which reduces the exposure to market risks from changing interest rates, exchanges the variable rate to fixed interest rate payments of 2.23% plus LIBOR margin and 2.47%, respectively. The exchange-traded swaps are valued on a recurring basis using quoted market prices and classified within Level 2 of the fair value hierarchy because the exchange is not deemed to be an active market. The derivative mark to market of $219 thousand was classified as a long-term liability on the balance sheet.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

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+ Details