Vessel Operating Expenses (Tables)

12 Months Ended

Dec. 31, 2012

Vessel Operating Expenses [Abstract]

Vessel Operating Expenses [Table Text Block]

	2012		2011		2010
Crew wages and related costs		13,670		16,423		14,095
Chemicals and lubricants		2,831		3,546		3,412
Repairs and maintenance		6,592		9,735		9,475
Insurance		2,791		3,490		2,825
Miscellaneous expenses		1,099		1,533		860
Total		26,983		34,727		30,667