Note 2 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Schedule of Useful Life of Property, Plant and Equipment [Table Text Block]

	Years
Computer equipment and software		3.0
Leasehold improvements	5.0	-	11.0
Furniture and fixture		7.0
Office equipment		5.0
Buildings		39.5

Disaggregation of Revenue [Table Text Block]

	For the Year Ended
	December 31,
	2021		2020		2019
	(in thousands)
Revenue:
SaaS		$ 85,580		$ 52,074		$ 27,744
Term license and support		50,970		38,949		26,985
Services		31,919		34,140		26,662
Maintenance		21,022		23,462		29,122
Perpetual license		2,418		2,908		5,586
Total revenue		$ 191,909		$ 151,533		$ 116,099

Accounts Receivable, Net, Deferred Revenue and Deferred Sales Commissions [Table Text Block]

	Accounts				Deferred
	receivable,		Deferred		contract
	net (1)		revenue		costs
	(in thousands)
Opening (January 1, 2020)	$	43,619	$	60,600	$	28,351
Closing (December 31, 2020)		53,749		74,688		31,943
Increase/(decrease)		10,130		14,088		3,592
Opening (January 1, 2021)	$	53,749	$	74,688	$	31,943
Closing (December 31, 2021)		61,335		82,332		38,926
Increase/(decrease)		7,586		7,644		6,983