Note 11 - Stock-based Compensation (Tables)

9 Months Ended

Oct. 31, 2018

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 ,
	2018		2017		2018		2017
	(in thousands)				(in thousands)
Cost of subscription	$	65	$	37	$	182	$	98
Cost of maintenance and other revenue		148		107		358		279
Cost of professional services		353		309		906		803
Sales and marketing		611		421		1,547		1,106
Research and development		442		338		1,170		895
General and administrative		529		1,099		3,455		3,490
Total stock-based compensation expense	$	2,148	$	2,311	$	7,618	$	6,671

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		276			52.75
Released (1)		(262	)		25.82
Forfeited		(20	)		29.67
Outstanding at October 31, 2018		647		$	36.47

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

	Nine Months Ended October 31 ,
	2018			2017
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		(386	)		9.41
Expired		(5	)		8.97
Forfeited		(476	)		37.14
Outstanding at October 31, 2018		2,537		$	20.80		3.8	$	53,606
Vested and exercisable at October 31, 2018		2,062		$	17.03		3.1	$	49,271