Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current Assets:
Cash and cash equivalents	$ 126,904	$ 150,753
Restricted cash	48,831	21,940
Marine operating supplies	9,892	8,275
Inventories	2,337	2,278
Prepaid expenses and other current assets	45,936	27,094
Total current assets	233,900	210,340
Property and equipment, net	544,746	542,418
Goodwill	42,017	42,017
Intangibles, net	12,123	13,235
Deferred tax asset	8,736	7,609
Right-to-use lease assets	3,764	4,402
Other long-term assets	4,020	7,470
Total assets	849,306	827,491
Current Liabilities:
Unearned passenger revenues	270,985	212,598
Accounts payable and accrued expenses	61,224	49,252
Lease liabilities - current	1,556	1,553
Long-term debt - current	24,081	26,061
Total current liabilities	357,846	289,464
Long-term debt, less current portion	539,872	518,658
Lease liabilities	2,517	3,178
Other long-term liabilities	302	247
Total liabilities	900,537	811,547
Commitments and contingencies
Redeemable noncontrolling interests	19,595	10,626
Temporary Equity, Carrying Amount, Including Portion Attributable to Noncontrolling Interests, Ending Balance	86,647	94,527
STOCKHOLDERS’ DEFICIT
Preferred stock, $0.0001 par value, 1,000,000 shares authorized; 62,000 and 80,000 Series A shares issued and outstanding as of June 30, 2022 and December 31, 2021, respectively	0	0
Common stock, $0.0001 par value, 200,000,000 shares authorized; 53,064,077 and 50,800,786 issued, 53,018,837 and 50,755,546 outstanding as of June 30, 2022 and December 31, 2021, respectively	5	5
Additional paid-in capital	80,812	58,485
Accumulated deficit	(218,695)	(136,439)
Accumulated other comprehensive loss	0	(634)
Total stockholders' deficit	(137,878)	(78,583)
Total liabilities, mezzanine equity and stockholders' deficit	849,306	827,491
Series A Redeemable Convertible Preferred Stock [Member]
Current Liabilities:
Series A redeemable convertible preferred stock, 165,000 shares authorized; 62,000 and 80,000 shares issued and outstanding as of June 30, 2022 and December 31, 2021, respectively	$ 67,052	$ 83,901