Note 2 - Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2022

Notes Tables

Disaggregation of Revenue [Table Text Block]

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2022		2021		2022		2021
	(in thousands)
Revenue:
SaaS	$	27,619	$	20,586	$	54,172	$	38,845
Term license and support		14,011		11,088		24,213		19,815
Services		9,848		7,302		18,773		13,218
Maintenance		4,067		5,458		8,508		10,867
Perpetual license		156		910		326		1,399
Total revenue	$	55,701	$	45,344	$	105,992	$	84,144

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, 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 (June 30, 2022)		56,218			80,946			40,474
Increase/(decrease)		(5,117	)		(1,386	)		1,548