Note 2 - Summary of Significant Accounting Policies (Tables)

3 Months Ended

12 Months Ended

Mar. 31, 2023

Dec. 31, 2022

Notes Tables

Disaggregation of Revenue [Table Text Block]

	Three Months Ended
	March 31,
	2023		2022
	(in thousands)
Revenue:
SaaS	$	35,512	$	26,553
Term license and support		10,904		10,202
Services		9,747		8,925
Maintenance		3,409		4,611
Total revenue	$	59,572	$	50,291

	For the Year Ended December 31,
	2022		2021		2020
	(in thousands)
Revenue:
SaaS	$	117,180	$	85,580	$	52,074
Term license and support		57,214		50,970		38,949
Services		41,283		31,919		34,140
Maintenance		15,868		21,022		23,462
Perpetual license		794		2,418		2,908
Total revenue	$	232,339	$	191,909	$	151,533

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

	Accounts				Deferred
	receivable,		Deferred		contract
	net		revenue		costs
	(in thousands)
Balance, December 31, 2022	$	73,348	$	101,490	$	48,553
Balance, March 31, 2023		60,738		99,189		47,794

	Accounts receivable, net (1)		Deferred revenue		Deferred Contract costs
	(in thousands)
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
Opening (January 1, 2022)	$	61,335	$	82,332	$	38,926
Closing (December 31, 2022)		73,348		101,490		48,553
Increase/(decrease)		12,013		19,158		9,627