Fair Value (Details) - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis (USD $) In Thousands, unless otherwise specified	Apr. 30, 2014		Jan. 31, 2014
Fair Value (Details) - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Money Market Mutual Fund	$ 120	[1]	$ 120	[1]
Investment in Cooperative	299	[1]	289	[1]
Total Assets	419		411
Interest Rate Swap Derivative Liabilities	747		1,141
Cash equivalents			2
Fair Value, Inputs, Level 1 [Member]
Fair Value (Details) - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Money Market Mutual Fund	120	[1]	120	[1]
Total Assets	120		122
Cash equivalents			2
Fair Value, Inputs, Level 2 [Member]
Fair Value (Details) - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Interest Rate Swap Derivative Liabilities	747		1,141
Fair Value, Inputs, Level 3 [Member]
Fair Value (Details) - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Investment in Cooperative	299	[1]	289	[1]
Total Assets	$ 299		$ 289

[1] The money market mutual fund and the investment in cooperative are included in "Other assets" on the accompanying Consolidated Condensed Balance Sheets.