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General information and significant accounting policies (Details Textual)	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Number Of Vessels In Operation	26
Average Age Of Vessels	6 years
Equity Method Investment, Ownership Percentage	50.00%	100.00%
Ardmore's Knowledge [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	10.00%

X

- Definition

Average age of vessels, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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X

- Definition

The number of vessels in operations.

+ References

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+ Details

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- References

No definition available.

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X

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

+ Details

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X

- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

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