Note 1 - Summary of Significant Accounting Policies - Disaggregation of Revenue by Type (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Revenues	$ 66,002	$ 60,717	$ 67,386	$ 79,312	$ 71,679	$ 65,896	$ 75,436	$ 96,204	$ 273,417	$ 309,215	$ 284,125
Revenues, percentage									100.00%	100.00%	100.00%
Revenues, variance									$ (35,798)	$ 25,090
Revenues, variance, percentage									(11.60%)	8.80%
Internet [Member]
Revenues									$ 230,263	$ 259,404	$ 238,054
Revenues, percentage									84.20%	83.90%	83.80%
Revenues, variance									$ (29,141)	$ 21,350
Revenues, variance, percentage									(11.20%)	9.00%
Contact Center [Member]
Revenues									$ 43,154	$ 49,811	$ 46,071
Revenues, percentage									15.80%	16.10%	16.20%
Revenues, variance									$ (6,657)	$ 3,740
Revenues, variance, percentage									(13.40%)	8.10%
Reorder Customer [Member]
Revenues									$ 250,401	$ 272,648	$ 248,560
Revenues, percentage									91.60%	88.20%	87.50%
Revenues, variance									$ (22,247)	$ 24,088
Revenues, variance, percentage									(8.20%)	9.70%
New Order Customer [Member]
Revenues									$ 23,016	$ 36,567	$ 35,565
Revenues, percentage									8.40%	11.80%	12.50%
Revenues, variance									$ (13,551)	$ 1,002
Revenues, variance, percentage									(37.10%)	2.80%