Note 2 - Summary of Significant Accounting Policies 1 (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Jun. 30, 2023	Dec. 31, 2022
Goodwill, Impaired, Accumulated Impairment Loss	$ 0		$ 0			$ 0
Gain (Loss), Foreign Currency Transaction, before Tax	700	$ 1,300	1,300	$ 2,400
Cash	7,000		7,000			10,800
Prepaid Expense, Current	7,300		7,300			7,100
Capitalized Contract Cost, Amortization	4,600	3,400	13,100	9,600
Capitalized Contract Cost, Net	50,232		50,232			48,553
Revenue from Contract with Customer, Excluding Assessed Tax	72,760	62,739	197,201	168,731
Contract with Customer, Liability	108,729		108,729			$ 101,490
Contract with Customer, Liability, Revenue Recognized			78,300
Revenue, Remaining Performance Obligation, Amount	275,800		275,800
Market Value of Common Stock Held by Non-affiliates					$ 700,000
Termed License and Support [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	16,293	18,288	40,474	42,501
Termed License and Support [Member] | SaaS [Member
Revenue, Remaining Performance Obligation, Amount	218,600		218,600
Transferred at Point in Time [Member] | Termed License and Support [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 11,100	$ 13,700	$ 24,900	$ 29,400