Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Current Assets:
Cash and cash equivalents	$ 261,781	$ 183,941
Restricted cash	28,343	32,202
Prepaid expenses and other current assets	73,664	62,290
Total current assets	363,788	278,433
Property and equipment, net	527,609	518,390
Goodwill	61,145	59,031
Intangibles, net	17,365	15,923
Other long-term assets	6,627	5,128
Total assets	976,534	876,905
Current Liabilities:
Unearned passenger revenues	362,276	318,666
Accrued expenses	54,848	58,054
Accounts payable	20,650	13,860
Lease liabilities - current	821	1,845
Long-term debt - current	10	29
Total current liabilities	438,605	392,454
Long-term debt, less current portion	663,443	625,425
Deferred tax liabilities	2,545	3,537
Other long-term liabilities	745	1,024
Total liabilities	1,105,338	1,022,440
Commitments and contingencies
Redeemable noncontrolling interests	45,968	29,424
Temporary equity, including noncontrolling interest	127,789	107,579
STOCKHOLDERS’ DEFICIT
Preferred stock, $0.0001 par value, 1,000,000 shares authorized; 62,000 Series A shares issued and outstanding as of September 30, 2025 and December 31, 2024, respectively	0	0
Common stock, $0.0001 par value, 200,000,000 shares authorized; 55,392,217 and 54,507,977 issued, 55,294,328 and 54,376,154 outstanding as of September 30, 2025 and December 31, 2024, respectively	6	6
Additional paid-in capital	127,973	109,473
Accumulated deficit	(384,572)	(362,881)
Accumulated other comprehensive income	0	288
Total stockholder’s deficit	(256,593)	(253,114)
Total liabilities, mezzanine equity and stockholders’ deficit	976,534	876,905
Series A Redeemable Convertible Preferred Stock [Member]
Current Liabilities:
Series A redeemable convertible preferred stock, 165,000 shares authorized; 62,000 shares issued and outstanding as of September 30, 2025 and December 31, 2024, respectively	$ 81,821	$ 78,155

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Name:	us-gaap_AccountsPayableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).