Note 11 - Segment Information - Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Tour revenues	$ 179,721	$ 153,614
Operating (loss) income	10,614	7,850
Cost of tours	92,848	84,453
General and administrative	32,722	27,236
Selling and marketing	28,242	22,758
Depreciation and amortization	15,295	11,317
Total Assets	908,829		$ 876,905
Total intangibles, net	15,281		15,923
Total goodwill	59,198		59,031
Operating Segments [Member]
Tour revenues	179,721	153,614
Operating (loss) income	10,614	7,850
Lindblad Segment [Member]
Depreciation	14,038	10,460
Amortization	22	22
Total Assets	669,725		667,799
Total intangibles, net	1,461		1,505
Total goodwill	0		0
Lindblad Segment [Member] | Operating Segments [Member]
Tour revenues	131,108	118,303
Operating (loss) income	8,387	7,783
Cost of tours	64,823	62,379
General and administrative	21,131	18,769
Selling and marketing	22,707	18,890
Depreciation and amortization	14,060	10,482
Land-experience [Member]
Depreciation	637	405
Amortization	598	430
Total Assets	239,104		209,106
Total intangibles, net	13,820		14,418
Total goodwill	59,198		$ 59,031
Land-experience [Member] | Operating Segments [Member]
Tour revenues	48,613	35,311
Operating (loss) income	2,227	67
Cost of tours	28,025	22,074
General and administrative	11,591	8,467
Selling and marketing	5,535	3,868
Depreciation and amortization	$ 1,235	$ 835