Condensed Consolidated Balance Sheets - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 100,011,694	$ 69,927,594
Restricted cash - current	25,557,674	18,846,177
Accounts receivable, net of a reserve of $2,169,958 and $2,357,191, respectively	24,243,815	13,843,480
Prepaid expenses	4,638,401	3,182,815
Inventories	17,091,901	11,624,833
Collateral on derivatives	31,369,664	0
Other current assets	1,689,972	839,881
Total current assets	204,603,121	118,264,780
Noncurrent assets:
Vessel and vessel improvements, at cost, net of accumulated depreciation	898,405,068	810,713,959
Advance for vessel purchase	2,200,000	3,250,000
Operating lease right-of-use assets	22,845,697	7,540,871
Other fixed assets, net of accumulated depreciation	309,625	489,179
Restricted cash - noncurrent	75,000	75,000
Deferred drydock costs, net	28,343,436	24,153,776
Advances for ballast water systems and other assets	5,875,314	2,639,491
Total noncurrent assets	958,054,140	848,862,276
Total assets	1,162,657,261	967,127,056
Current liabilities:
Accounts payable	15,169,624	10,589,970
Accrued interest	7,075,532	4,690,135
Other accrued liabilities	14,660,495	11,747,064
Fair value of derivatives - current	24,381,090	481,791
Current portion of operating lease liabilities	21,094,309	7,615,371
Unearned charter hire revenue	17,045,647	8,072,295
Holdco Revolving Credit Facility, net of debt issuance costs	23,821,677	0
Current portion of long-term debt	42,666,521	39,244,297
Total current liabilities	165,914,895	82,440,923
Noncurrent liabilities:
Total debt	387,347,001	412,931,021
Fair value of derivatives - noncurrent	0	650,607
Noncurrent portion of operating lease liabilities	1,744,619	686,422
Total noncurrent liabilities	389,091,620	414,268,050
Total liabilities	555,006,515	496,708,973
Commitments and contingencies
Stockholders' equity:
Preferred stock	0	0
Common stock	128,640	116,618
Additional paid-in capital	982,652,311	943,571,685
Accumulated deficit	(374,722,217)	(472,137,822)
Accumulated other comprehensive loss	(407,988)	(1,132,398)
Total stockholders' equity	607,650,746	470,418,083
Total liabilities and stockholders' equity	1,162,657,261	967,127,056
Norwegian Bond Debt Facility
Noncurrent liabilities:
Total debt	166,351,589	169,290,230
Super Senior Facility
Noncurrent liabilities:
Total debt	0	14,896,357
New Ultraco Debt Facility
Noncurrent liabilities:
Total debt	121,182,097	132,083,949
Convertible Bond Debt
Noncurrent liabilities:
Total debt	$ 99,813,315	$ 96,660,485