Note 3 - Revenues (Tables)

3 Months Ended

Mar. 31, 2023

Notes Tables

Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]

	Contract Liabilities
(In thousands)
Balance as of December 31, 2022	$	178,198
Recognized in tour revenues during the period		(134,262	)
Additional contract liabilities in period		95,692
Balance as of March 31, 2023	$	139,628

Disaggregation of Revenue [Table Text Block]

	For the three months ended March 31,
	2023			2022
Guest ticket revenue:		(unaudited)
Direct		45	%		45	%
National Geographic		14	%		16	%
Agencies		23	%		20	%
Affinity		7	%		9	%
Guest ticket revenue		89	%		90	%
Other tour revenue		11	%		10	%
Tour revenues		100	%		100	%