Accrued Expenses and Other Current Liabilities (Details) - Schedule of accrued expenses and other current liabilities - USD ($) $ in Thousands	Oct. 31, 2016	Jan. 31, 2016
Schedule of accrued expenses and other current liabilities [Abstract]
Accrued utility charges	$ 1,947	$ 2,094
Accrued payroll and related items	2,884	3,760
Accrued income taxes	3,187
Accrued real estate taxes	1,188	2,564
Other	1,669	1,005
Total	$ 10,875	$ 9,423