Note 8 - Other Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

Schedule of Accrued Liabilities [Table Text Block]

	December 31, 2016		December 31, 2015
Vessel and voyage expenses	$	6,986,486	$	8,901,904
General and administrative expenses		3,446,113		1,347,951
Other expenses		1,112,848		577,220
Balance	$	11,545,447	$	10,827,075