Accrued Expenses and Other Current Liabilities (Details) - Schedule of accrued expenses and other current liabilities - USD ($) $ in Thousands	Jul. 31, 2016	Jan. 31, 2016
Schedule of accrued expenses and other current liabilities [Abstract]
Accrued utility charges	$ 1,866	$ 2,094
Accrued payroll and related items	1,794	3,760
Accrued income taxes	1,140
Accrued real estate taxes	2,100	2,564
Other	1,446	1,005
Total	$ 8,346	$ 9,423