Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130549-203045

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- Definition

This element represents costs incurred by the lessor that are (a) costs to originate a lease incurred in transactions with independent third parties that (i) result directly from and are essential to acquire that lease and (ii) would not have been incurred had that leasing transaction not occurred and (b) certain costs directly related to specified activities performed by the lessor for that lease. Those activities are: evaluating the prospective lessee's financial condition; evaluating and recording guarantees, collateral, and other security arrangements; negotiating lease terms; preparing and processing lease documents; and closing the transaction. The costs represented by this element are those costs expected to be recognized in (amortized to) earnings within one year from the date of the statement of financial position or operating cycle, if longer.

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-Publisher FASB
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-Topic 210
-SubTopic 10
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-Paragraph 1
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- Definition

Amount of deferred lease income, classified as noncurrent. Includes, but is not limited to, amount paid in advance by lessee.

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No definition available.

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- Definition

Amount of amortization of other deferred costs recognized in the income statement.

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-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
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-Paragraph 28
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Significant Accounting Policies and Recent Accounting Pronouncements, Lease Contracts (Details) - USD ($)	3 Months Ended	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Sep. 30, 2018
Lease Contracts [Abstract]
Amortization expense related to deferred ballast costs	$ 0	$ 112,508	$ 31,066	$ 0
Amortization of deferred ballast income	$ 0	430,994	119,006	$ 0
Voyage Expenses [Member]
Lease Contracts [Abstract]
Amortization expense related to deferred ballast costs		112,508	31,066
Vessel Revenues [Member]
Lease Contracts [Abstract]
Amortization of deferred ballast income		430,994	119,006
Deferred Charges, Net [Member]
Lease Contracts [Abstract]
Deferred ballast costs		0	112,508
Deferred Revenue, Net [Member]
Lease Contracts [Abstract]
Deferred ballast income		$ 0	$ 430,994