Note 2 - Summary of Significant Accounting Policies 1 (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Goodwill, Impairment Loss			$ 0		$ 0
Finite-Lived Intangible Asset, Useful Life (Year)	7 years 6 months		7 years 6 months
Gain (Loss), Foreign Currency Transaction, before Tax	$ 300	$ 900	$ 600	$ 1,100
Cash	6,600		6,600		10,800
Prepaid Expense, Current	4,300		4,300		7,100
Capitalized Contract Cost, Amortization	4,300	3,200	8,500	6,200
Capitalized Contract Cost, Net	49,426		49,426		48,553
Revenue from Contract with Customer, Excluding Assessed Tax	64,869	55,701	124,441	105,992
Contract with Customer, Liability	102,927		102,927		$ 101,490
Contract with Customer, Liability, Revenue Recognized			61,100
Revenue, Remaining Performance Obligation, Amount	266,700		266,700
Market Value of Common Stock Held by Non-affiliates	700,000		$ 700,000
Domestic Tax Authority [Member] | Internal Revenue Service (IRS) [Member]
Open Tax Year			2019
State and Local Jurisdiction [Member]
Open Tax Year			2022
Foreign Tax Authority [Member]
Open Tax Year			2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022
Termed License and Support [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	13,277	14,011	$ 24,181	24,213
Termed License and Support [Member] | SaaS [Member
Revenue, Remaining Performance Obligation, Amount	205,600		205,600
Transferred at Point in Time [Member] | Termed License and Support [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 8,100	$ 9,900	$ 14,000	$ 16,100
Minimum [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	1 year		1 year
Maximum [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	10 years		10 years