Note 2 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

Disaggregation of Revenue [Table Text Block]

	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 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