Note 11 - Stock-based Compensation (Tables)

6 Months Ended

Jul. 31, 2018

Notes Tables

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

	Three Months Ended July 31,				Six Months Ended July 31,
	201 8		201 7		201 8		201 7
	(in thousands)				(in thousands)
Cost of subscription	$	68	$	36	$	117	$	61
Cost of maintenance and other revenue		118		95		210		172
Cost of professional services		327		274		553		494
Sales and marketing		534		368		936		685
Research and development		413		304		728		557
General and administrative		1,904		1,515		2,926		2,391
Total stock-based compensation expense	$	3,364	$	2,592	$	5,470	$	4,360

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, 2018		653		$	25.10
Granted		270			52.72
Released (1)		(252	)		25.56
Forfeited		(13	)		25.13
Outstanding at July 31, 2018		658		$	36.22

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

	Six Months Ended July 31,
	201 8			201 7
Expected life in years (1)		5.50			5.50
Risk free interest rate (2)		2.80	%		1.82	%
Volatility (3)		31	%		33	%
Dividend rate (4)		0.54	%		0.91	%

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, 2018		3,024		$	17.78
Granted		380			53.50
Exercised		(384	)		9.39
Expired		(5	)		8.97
Forfeited		(1	)		19.40
Outstanding at July 31, 2018		3,014		$	23.37		4.5	$	77,830
Vested and exercisable at July 31, 2018		2,064		$	17.02		3.4	$	64,899