Transactions with Related Parties-Shanghai Costamare (Details Narrative)	Dec. 31, 2016
SCSC GM [Member]
Related Party Transaction [Line Items]
Percentage of ownership	30.00%
SCSC Chairman and CEO [Member]
Related Party Transaction [Line Items]
Percentage of ownership	70.00%

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_RelatedPartyTransactionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration