Deferred revenue, current and non-current (Tables)

6 Months Ended

Jun. 30, 2013

Deferred Revenue Disclosure [Abstract]

Deferred Revenue, by Arrangement, Disclosure [Table Text Block]

			June 30, 2013		December 31, 2012
Hires collected in advance		$	1,227	$	1,157
Deferred revenue from lubricants			328		378
	Total	$	1,555	$	1,535
Less current portion		$	(1,334)	$	(1,264)
	Non-current portion	$	221	$	271