Note 2 - Vessel Additions (Details) (Regulus [Member], Large Platform Supply Vessel [Member], Americas [Member])	3 Months Ended
	Mar. 31, 2015 T hp ft
Regulus [Member] | Large Platform Supply Vessel [Member] | Americas [Member]
Year Built	2,015
Length	272
Brake Horse Power	9,849
Deadweight tons	3,580
Month Delivered	Jan-15