Note 6 - Stock-based Compensation (Tables)

12 Months Ended

Jan. 31, 2021

Notes Tables

Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]

	Years Ended January 31,
	2021		2020		2019
	(in thousands)
Stock-based compensation expense:
Cost of subscription	$	544	$	315	$	252
Cost of maintenance		479		540		497
Cost of professional services		1,652		1,456		1,219
Sales and marketing		2,913		2,057		2,111
Research and development		2,241		1,863		1,620
General and administrative		6,363		5,123		4,423
Total stock-based compensation expense	$	14,192	$	11,354	$	10,122

Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]

	RSUs (in thousands)			Weighted Average Grant Date Fair Value
Restricted stock at January 31, 2018		653		$	25.10
Granted		300			51.70
Released (1)		(263	)		25.80
Forfeited		(27	)		30.63
Restricted stock at January 31, 2019		663		$	36.64
Granted		281			40.43
Released (1)		(267	)		32.71
Forfeited		(50	)		38.51
Restricted stock at January 31, 2020		627		$	39.86
Granted		350			40.50
Released (1)		(258	)		35.99
Forfeited		(21	)		41.67
Restricted stock at January 31, 2021		698		$	41.56

Share-based Payment Arrangement, Performance Shares, Activity [Table Text Block]

	PSUs (in thousands)			Weighted Average Grant Date Fair Value
Performance stock units at January 31, 2019		—		$	—
Granted		93			39.82
Released		—			—
Forfeited		(3	)		39.82
Performance stock units at January 31, 2020		90		$	39.82
Granted		93			40.54
Released (1)		(21	)		39.82
Forfeited		(9	)		39.82
Performance stock units at January 31, 2021		153		$	40.26

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

	Year Ended January 31, 2019
Expected life in years	5.50
Risk free interest rate	2.80	%
Volatility	31	%
Dividend rate	0.54	%

Share-based Payment Arrangement, Option and Stock Appreciation Rights, 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		(390	)		9.43
Expired		(5	)		9.17
Forfeited		(476	)		37.14
Outstanding at January 31, 2019		2,533		$	20.81
Granted		—			—
Exercised		(1,184	)		16.19
Expired		—			—
Forfeited		—			—
Outstanding at January 31, 2020		1,349		$	24.86
Granted		—			—
Exercised		(205	)		12.91
Expired		—			—
Forfeited		—			—
Outstanding at January 31, 2021		1,144		$	27.01		2.9	$	40,971
Vested and exercisable at January 31, 2021		1,002		$	24.28		2.5	$	38,324