ACCOUNTS RECEIVABLES (Details) - USD ($)	Jan. 31, 2018	Jan. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	$ 22,820,925	$ 43,054,811
Financing Receivables, 0 to 30 days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	16,761,646
Financing Receivables, 30 to 60 days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable		20,760,211
Financing Receivables, Within 1 year Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable		5,607,879
Financing Receivables Over 1 Year Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	$ 6,059,279	$ 16,686,721