Note 13 - Revenue From Contracts With Customers - Deferred Contract Costs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Balance, net	$ 11,955	$ 8,843	$ 10,930	$ 8,835
Additions	2,496	1,687	4,855	3,038
Amortization	(1,834)	(1,424)	(3,168)	(2,767)
Balance, net	12,617	9,106	12,617	9,106
Cost to Obtain Contract [Member]
Balance, net	11,875	8,766	10,850	8,759
Additions	2,491	1,679	4,844	3,021
Amortization	(1,831)	(1,420)	(3,159)	(2,755)
Balance, net	12,535	9,025	12,535	9,025
Cost to Fulfill Contract [Member]
Balance, net	80	77	80	76
Additions	5	8	11	17
Amortization	(3)	(4)	(9)	(12)
Balance, net	$ 82	$ 81	$ 82	$ 81