Note 4 - Vessel Acquisitions, Dispositions and New-build Program (Tables)

12 Months Ended

Dec. 31, 2017

Notes Tables

Vessel Additions [Table Text Block]

Vessel Additions Since December 31, 2016
Vessel	Region	Type (1)	Year Built	Length (feet)	BHP (2)	DWT (3)	Month Delivered
North Barents	N. Sea	LgPSV	2017	304	11,935	4,700	Jan-17

Vessels Disposed [Table Text Block]

Vessels Disposed of Since December 31, 2016
Vessel	Region	Type (1)	Year Built	Length (feet)	BHP (2)	DWT (3)	Month Disposed
Mako	Americas	FSV	2008	181	7,200	552	Mar-17
Tiger	Americas	FSV	2009	181	7,200	552	Mar-17