Note 10 - Stock-based Compensation (Tables)

9 Months Ended

Oct. 31, 2017

Notes Tables

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]

	Three Months Ended October 31,				Nine Months Ended October 31,
	2017		2016		2017		2016
	(in thousands)				(in thousands)
Cost of subscription	$	37	$	32	$	98	$	81
Cost of maintenance and other revenue		107		80		279		219
Cost of professional services		309		232		803		618
Sales and marketing		421		306		1,106		904
Research and development		338		262		895		748
General and administrative		1,099		908		3,490		2,951
Total stock-based compensation expense	$	2,311	$	1,820	$	6,671	$	5,521

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

	RSUs			Weighted Average Grant Date Fair Value
	(in thousands)
Outstanding at January 31, 2017		623		$	20.56
Granted		294			30.68
Released (1)		(245	)		20.44
Forfeited		(10	)		20.99
Outstanding at October 31, 2017		662		$	25.07

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	Nine Months Ended October 31,
	2017			2016
Expected life in years (1)		5.50			5.25
Risk free interest rate (2)		1.82	%		1.16	%
Volatility (3)		33	%		36	%
Dividend rate (4)		0.91	%		1.51	%

Schedule of Share-based Compensation, Stock Options and Stock Appreciation Rights Award Activity [Table Text Block]

	SARs (in thousands)			Weighted Average Exercise Price per Share		Weighted Average Remaining Contractual Term (years)		Aggregate Intrinsic Value (in thousands)
Outstanding at January 31, 2017		2,793		$	15.51
Granted		380			31.65
Exercised		(127	)		10.54
Expired		(10	)		9.75
Forfeited		—			—
Outstanding at October 31, 2017		3,036		$	17.75		4.2	$	56,056
Vested and exercisable at October 31, 2017		2,085		$	14.23		3.1	$	45,683