Summary of Significant Accounting Policies (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Summary of Significant Accounting Policies [Abstract]
Net income available to common stockholders	$ 10,796	$ 596
Weighted average shares outstanding:
Total weighted average shares outstanding, basic	45,274,540	44,707,273
Dilutive potential common shares	393,025	1,054,665
Total weighted average shares outstanding, diluted	45,667,565	45,761,938
Net income per share available to Lindblad
Basic	$ 0.24	$ 0.01
Diluted	$ 0.24	$ 0.01