Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2017
Cash flows from operating activities:
Net loss	$ (50,945,905)	$ (20,400,686)	$ (1,441,815)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	65,201,151	65,329,951	65,057,487
Amortization of financing costs	3,136,051	7,506,509	3,709,421
Unrealized (gain)/loss on derivatives	7,816,401	(8,421,531)	(27,491,333)
Stock-based compensation expense	5,476,234	5,138,489	4,385,911
Gain on early extinguishment of debt		(4,117,364)
Unrealized foreign currency (gain)/loss, net	303,835	(63,761)	222,281
Other non-cash items, net	(48,182)	144,545	305,774
Changes in operating assets and liabilities
Trade receivables, net and accrued revenue	(1,047,956)	(325,132)	96,287
Prepaid expenses and other current assets	(537,549)	(579,981)	343,902
Due from related parties	(17,574,923)	15,576,280	9,847,359
Inventories	(98,730)	567,835	(292,669)
Other non-current assets	(131,457)	(10,171)	19,802
Trade accounts payable	793,925	(561,808)	743,993
Accrued expenses and other liabilities	(2,999,444)	(2,406,945)	(1,172,349)
Due to related parties	144,129	334,353	(697,048)
Payments for drydocking costs	(604,147)	(461,480)	(1,533,235)
Net cash provided by operating activities	8,883,433	57,249,103	52,103,768
Cash flows from investing activities:
Vessel-related capital expenditures	(3,972,815)	(297,534)	(1,911,182)
Purchases of investment securities	(499,690)
Payments to acquire other fixed assets	(47,799)	(139,503)	(8,483)
Net cash used in investing activities	(4,520,304)	(437,037)	(1,919,665)
Cash flows from financing activities:
Proceeds from long-term debt borrowings	65,137,500	261,000,000
Repayment of long-term debt borrowings	(130,205,069)	(251,994,382)	(66,265,644)
Purchase of treasury stock	(1,310,064)	(1,220,535)	(12,953,453)
Financing costs paid	(628,144)	(3,113,425)	(99,785)
Net cash provided by/(used in) financing activities	(67,005,777)	4,671,658	(79,318,882)
Effects of exchange rates on cash and cash equivalents	(253,086)	(8,042)	(197,274)
Net increase/(decrease) in cash, cash equivalents and restricted cash	(62,895,734)	61,475,682	(29,332,053)
Cash, cash equivalents, and restricted cash at the beginning of the period	129,368,380	67,892,698	97,224,751
Cash, cash equivalents, and restricted cash at the end of the period	66,472,646	129,368,380	67,892,698
Supplemental disclosure of cash flow information
Cash paid during the period for interest	36,906,567	27,958,102	$ 24,537,376
Financing costs included in liabilities	$ 595,138	$ 142,434