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Long-term Debt and Revolving Credit Facility (Details) (USD $)	Jan. 31, 2013	Jan. 31, 2012
Long-Term Debt, Gross	$ 4,274,000	$ 5,031,000
Less: current maturities	(763,000)	(753,000)
Long-term debt, less current maturities	3,511,000	4,278,000
Real Estate Mortgage Note [Member]
Long-Term Debt, Gross	2,877,000	3,111,000
Equipment Term Note [Member]
Long-Term Debt, Gross	887,000	1,267,000
Equipment Credit Line Note [Member]
Long-Term Debt, Gross	$ 510,000	$ 653,000

Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date before deducting unamortized discount or premiums (if any). May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer.

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