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Document and Entity Information	9 Months Ended
	Sep. 30, 2016
Document And Entity Information [Abstract]
Entity Registrant Name	Seanergy Maritime Holdings Corp.
Entity Central Index Key	0001448397
Entity Filer Category	Non-accelerated Filer
Document Type	F-1
Document Period End Date	Jun. 30, 2016
Amendment Flag	false

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The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD.

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The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word "Other".

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A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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