Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Sep. 30, 2020	Dec. 31, 2019
Current Assets:
Cash and cash equivalents	$ 129,647,000	$ 101,579,000
Restricted cash	16,523,000	7,679,000
Marine operating supplies	5,913,000	6,299,000
Inventories	1,824,000	2,027,000
Prepaid expenses and other current assets	22,820,000	29,055,000
Total current assets	176,727,000	146,639,000
Property and equipment, net	488,048,000	357,790,000
Goodwill	22,105,000	22,105,000
Intangibles, net	5,212,000	6,396,000
Deferred tax asset	3,392,000	218,000
Right-to-use lease assets	5,349,000	6,105,000
Other long-term assets	7,971,000	9,405,000
Total assets	708,804,000	548,658,000
Current Liabilities:
Unearned passenger revenues	120,463,000	138,825,000
Accounts payable and accrued expenses	31,811,000	38,231,000
Lease liabilities - current	1,436,000	1,335,000
Long-term debt - current	8,451,000	4,525,000
Total current liabilities	162,161,000	182,916,000
Long-term debt, less current portion	391,284,000	213,543,000
Deferred tax liabilities	0	4,491,000
Lease liabilities	4,321,000	5,029,000
Other long-term liabilities	401,000	3,317,000
Total liabilities	558,167,000	409,296,000
COMMITMENTS AND CONTINGENCIES
Redeemable noncontrolling interest	7,940,000	16,112,000
STOCKHOLDERS’ EQUITY
Preferred stock, $0.0001 par value, 1,000,000 shares authorized; 85,000 Series A shares issued and outstanding	0	0
Common stock, $0.0001 par value, 200,000,000 shares authorized; 49,875,186 and 49,717,522 issued, 49,801,510 and 49,626,498 outstanding as of September 30, 2020 and December 31, 2019, respectively	5,000	5,000
Additional paid-in capital	47,662,000	46,271,000
Retained earnings	19,473,000	81,655,000
Accumulated other comprehensive loss	(7,079,000)	(4,681,000)
Total stockholders' equity	60,061,000	123,250,000
Total liabilities, stockholders' equity and redeemable noncontrolling interest	708,804,000	548,658,000
Series A Redeemable Convertible Preferred Stock [Member]
Current Liabilities:
Series A redeemable convertible preferred stock, 165,000 and no shares authorized; 85,000 and no shares issued and outstanding as of September 30, 2020 and December 31, 2019, respectively	$ 82,636,000	$ 0