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The minimum threshold for the minimum liquidity required by the covenant.

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Minimum liquidity required by covenant if the aggregate of the per vessel amount is greater than the minimum threshold amount.

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The minimum threshold that the aggregate market value of the vessels in the companies fleet to the aggregate principal amount of debt outstanding that must be maintained to stay in compliance with the covenant.

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As a requirement of a debt agreement, the amount of the periodic payment due expressed as a percentage of the reporting entity's excess cash flows from the previous period.

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No definition available.

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- Definition

Represents the number of stock issued to lenders, expressed as a percentage of previously outstanding common stock, for their participation in a debt agreement.

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No definition available.

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Stock issued to lenders, expressed as a percentage of previously outstanding common stock, for their participation in a debt agreement.

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No definition available.

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Represents the number of stock issued to lenders pro rata based on their participation in a facility.

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No definition available.

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Represents the additional number of stock issued to lenders pro rata based on their participation in a facility.

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No definition available.

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Represents the percentage of outstanding stock issued to lenders pro rata based on their participation in a facility.

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No definition available.

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Amount of the maximum annual required periodic payments including both interest and principal payments.

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The minimum level that will be used for the specified reference rate to compute the variable rate on the debt instrument.

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No definition available.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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No definition available.

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The average effective interest rate during the reporting period.

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Amount of the required periodic payments including both interest and principal payments.

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- Definition

Amount, after accumulated amortization, of debt discount.

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The amount of cash paid for interest during the period.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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No definition available.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Note 4 - Debt (Details Textual)							3 Months Ended		6 Months Ended	9 Months Ended		12 Months Ended
Note 4 - Debt (Details Textual)	Jul. 15, 2019 USD ($)	Apr. 15, 2019 USD ($)	Jan. 15, 2019 USD ($)	Aug. 02, 2016 shares	Mar. 30, 2016 USD ($) $ / item shares	Oct. 02, 2015	Sep. 30, 2016 USD ($)	Sep. 30, 2015	Dec. 31, 2017	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Dec. 31, 2019	Dec. 31, 2018
First Lien Facility [Member] \| First Lien Lenders [Member] \| Scenario, Forecast [Member]
Debt Instrument, Periodic Payment	$ 3,786,346	$ 3,786,346	$ 3,786,346
Debt Instrument, Covenant Percentage of Aggregate Principal, Minimum Threshold									100.00%			120.00%	110.00%
First Lien Facility [Member] \| First Lien Lenders [Member] \| Through December 31, 2018 [Member]
Debt Instrument, Covenant, Periodic Payment Amount, Percentage of Excess Cash Flow from Preceding Period					75.00%
Debt Instrument, Maximum Annual Periodic Payment					$ 15,625,000
First Lien Facility [Member] \| First Lien Lenders [Member] \| After December 31, 2018 [Member]
Debt Instrument, Periodic Payment					3,906,250
First Lien Facility [Member] \| First Lien Lenders [Member] \| Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity					50,000,000
Line of Credit Facility, Remaining Borrowing Capacity							$ 30,000,000			$ 30,000,000
First Lien Facility [Member] \| First Lien Lenders [Member]
Long-term Debt					201,468,750
Payments of Debt Issuance Costs					600,000					5,651,000
Debt Instrument, Covenant, Minimum Liquidity, Minimum Threshold					$ 8,140,000
Debt Instrument, Covenant, Minimum Liquidity, Minimum Threshold Per Vessel \| $ / item					185,000
Repayments of Long-term Debt					$ 11,718,750
Second Lien Facility [Member] \| Second Lien Lenders [Member] \| Scenario, Forecast [Member]
Debt Instrument, Covenant Percentage of Aggregate Principal, Minimum Threshold									100.00%			120.00%	110.00%
Second Lien Facility [Member] \| Second Lien Lenders [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate					14.00%
Debt Instrument, Reference Rate Floor					1.00%
Second Lien Facility [Member] \| Second Lien Lenders [Member] \| Base Rate [Member]
Debt Instrument, Basis Spread on Variable Rate					13.00%
Second Lien Facility [Member] \| Second Lien Lenders [Member] \| Chairman and Chief Financial Officer [Member]
Debt Instrument, Issuance of Stock to Lenders Pro Rata Based on Participation \| shares				98,454
Second Lien Facility [Member] \| Second Lien Lenders [Member]
Long-term Debt					$ 60,000,000
Debt Instrument, Covenant, Minimum Liquidity, Minimum Threshold					$ 6,512,000
Debt Instrument, Covenant, Minimum Liquidity, Minimum Threshold Per Vessel \| $ / item					148,000
Debt Instrument, Issuance of Stock to Lenders Pro Rata Based on Participation \| shares					16,889,828
Debt Instrument, Issuance of Stock to Lenders Pro Rata Based on Participation, Percentage of Outstanding Stock					90.00%
Debt Instrument, Issuance of Stock to Lenders Based on Participation \| shares					371,276
Debt Instrument, Issuance of Stock to Lenders Based on Participation, Percent of Previous Outstanding Common Stock					19.40%
Debt Instrument Issuance of Stock to Lenders Pro Rata Based on Participation, Additional \| shares				16,420,098
Second Lien Facility [Member] \| Second Lien Lenders [Member]
Debt Instrument, Unamortized Discount							$ 18,000,000			$ 18,000,000
Minimum [Member]
Debt Instrument, Interest Rate During Period							4.46%	4.06%		3.86%	4.04%
Maximum [Member]
Debt Instrument, Interest Rate During Period							4.52%	4.08%		4.53%	4.08%
Weighted Average [Member]
Debt Instrument, Interest Rate During Period							5.65%	5.10%		5.49%	5.30%
Payments of Debt Issuance Costs										$ 2,467,647
Charters Agreement Term					1 year 180 days	7 years
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage							40.00%	40.00%		40.00%	40.00%
Interest Paid										$ 7,627,417	$ 7,602,603