Segment Information (Tables)

6 Months Ended

Jun. 30, 2012

Segment Information [Abstract]

Schedule of Long-Lived Assets, by Geographical Areas

	Long Lived Assets
	At June 30,	At December 31,
Amounts in thousands	2012	2011
United States	$55,661	$56,294
International:
Canada	$48,771	$48,423
Europe	3,647	3,228
International waters	1,349	1,496
Total international	53,767	53,147
Total	$109,428	$109,441

Schedule of Revenue from External Customers, by Geographical Areas

	Net Operating Revenue		Net Operating Revenue
	For the three months		For the six months
	ended June 30,		ended June 30,
Amounts in thousands	2012	2011	2012	2011
United States	$7,731	$7,731	$15,119	$14,969
International:
Canada	$8,404	$8,652	$16,947	$16,994
International waters	1,578	1,509	3,138	2,931
Aruba	78	110	156	223
Total international	10,060	10,271	20,241	20,148
Total	$17,791	$18,002	$35,360	$35,117