OTHER BALANCE SHEET ACCOUNTS (Details) - USD ($) $ in Thousands	Jan. 31, 2016	Jan. 31, 2015
Other current assets [Abstract]
Deferred cost of revenues	$ 7,849	$ 8,363
Prepaid expenses	5,789	4,589
Income tax receivable, net of payables	1,202	465
Other	1,184	1,382
Other current assets	16,024	14,799
Other assets, net [Abstract]
Other intangibles, net	1,073	1,750
Security deposits	1,315	1,416
Other long-term assets	358	448
Other assets, net	2,746	3,614
Accounts payable [Abstract]
Trade payables	6,648	8,164
VAT payable	4,163	4,708
Accounts payable	10,811	12,872
Other current liabilities [Abstract]
Accrued commissions and bonus	12,155	14,585
Accrued compensated absences	7,887	8,072
Other accrued payroll	4,126	4,805
Accrued professional fees	1,416	1,733
Accrued travel	1,558	1,580
Accrued contract labor	914	908
Contingent liability related to acquisition of CEBOS	0	750
Other current liabilities	3,479	3,332
Total other current liabilities	31,535	35,765
Other liabilities [Abstract]
Long-term deferred revenue	1,690	2,361
Fair value of interest rate swap	674	626
Long-term tax contingency reserve	503	518
Other	1,598	1,714
Other liabilities	$ 4,465	$ 5,219