STOCK-BASED COMPENSATION (Details) - USD ($) | 3 Months Ended |
Apr. 30, 2016 | Apr. 30, 2015 |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | | | |
Stock-based compensation expense | | $ 1,554,000 | $ 1,306,000 |
Cost of Subscription [Member] | | | |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | | | |
Stock-based compensation expense | | 19,000 | 12,000 |
Cost of Maintenance and Other Revenue [Member] | | | |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | | | |
Stock-based compensation expense | | 61,000 | 46,000 |
Cost of Professional Services [Member] | | | |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | | | |
Stock-based compensation expense | | 155,000 | 119,000 |
Sales and Marketing [Member] | | | |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | | | |
Stock-based compensation expense | | 261,000 | 261,000 |
Research and Development [Member] | | | |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | | | |
Stock-based compensation expense | | 227,000 | 148,000 |
General and Administrative [Member] | | | |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | | | |
Stock-based compensation expense | | $ 831,000 | $ 720,000 |
Stock Appreciation Rights (SARs) [Member] | | | |
Stock Appreciation Rights (SARs) [Roll Forward] | | | |
Outstanding at beginning of period (in shares) | | 2,596,000 | |
Granted (in shares) | | 0 | |
Exercised (in shares) | | (20,000) | |
Expired (in shares) | | 0 | |
Forfeited (in shares) | | (6,000) | |
Outstanding at end of period (in shares) | | 2,570,000 | |
Vested and expected to vest (in shares) | [1] | 2,566,000 | |
Vested and exercisable (in shares) | | 1,503,000 | |
Weighted Average Exercise Price per Share [Abstract] | | | |
Outstanding at beginning of period (in dollars per share) | | $ 14.74 | |
Granted (in dollars per share) | | 0 | |
Exercised (in dollars per share) | | 10.44 | |
Expired (in dollars per share) | | 0 | |
Forfeited (in dollars per share) | | 12.16 | |
Outstanding at end of period (in dollars per share) | | 14.78 | |
Vested and expected to vest (in dollars per share) | [1] | 14.78 | |
Vested and exercisable (in dollars per share) | | $ 11.52 | |
Additional Disclosures [Abstract] | | | |
Weighted average remaining contractual term, outstanding at end of period | | 4 years 7 months 6 days | |
Weighted average remaining contractual term, vested and expected to vest at end of period | [1] | 4 years 7 months 6 days | |
Weighted average remaining contractual term, vested and exercisable at end of period | | 3 years 7 months 6 days | |
Aggregate intrinsic value, outstanding at end of period | | $ 14,640,000 | |
Aggregate intrinsic value, vested and expected to vest at end of period | [1] | 14,616,000 | |
Aggregate intrinsic value, vested and exercisable at end of period | | 11,773,000 | |
Total intrinsic value of SARs exercised | | $ 200,000 | |
Number of shares withheld for payment of taxes (in shares) | | 3,400 | |
Value of shares withheld for payment of taxes | | $ 69,000 | |
Total unrecognized compensation cost | | $ 5,000,000 | |
Weighted-average period to recognize total unrecognized compensation cost | | 2 years 4 months 24 days | |
Restricted Stock Units (RSUs) [Member] | | | |
Additional Disclosures [Abstract] | | | |
Number of shares withheld for payment of taxes (in shares) | | 16,000 | |
Value of shares withheld for payment of taxes | | $ 300,000 | |
Total unrecognized compensation cost | | $ 8,200,000 | |
Weighted-average period to recognize total unrecognized compensation cost | | 2 years 7 months 6 days | |
Summary of Activity of RSUs [Roll Forward] | | | |
Restricted stock at beginning of period (in shares) | | 617,000 | |
Granted (in shares) | | 0 | |
Released (in shares) | [2] | (45,000) | |
Forfeited (in shares) | | (16,000) | |
Restricted stock at end of period (in shares) | | 556,000 | |
Weighted Average Grant Date Fair Value [Abstract] | | | |
Restricted stock at beginning of period (in dollars per share) | | $ 20.91 | |
Granted (in dollars per share) | | 0 | |
Released (in dollars per share) | [2] | 20.41 | |
Forfeited (in dollars per share) | | 21.15 | |
Restricted stock at end of period (in dollars per share) | | $ 20.94 | |
| |
[1] | The expected-to-vest SARs are the result of applying the pre-vesting forfeiture rate assumptions to total outstanding SARs. | |
[2] | The number of RSUs released includes shares withheld on behalf of employees to satisfy statutory tax withholding requirements. | |