Segment Activity (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Segment Reporting Information [Line Items]
Revenues	$ 19,894	$ 22,006
Operating income (loss)	(4,464)	(8,029)
Total Assets	491,075		446,193
Corporate and Other
Segment Reporting Information [Line Items]
Operating income (loss)	(4,517)	(4,051)
Total Assets	36,788		858
Nigeria
Segment Reporting Information [Line Items]
Revenues	19,894	22,006
Operating income (loss)	2,313	(3,088)
Total Assets	450,693		441,826
Kenya
Segment Reporting Information [Line Items]
Operating income (loss)	(1,992)	(654)
Total Assets	1,549		1,484
Gambia
Segment Reporting Information [Line Items]
Operating income (loss)	(268)	(236)
Total Assets	$ 2,045		$ 2,025