Acquisition of Atlantic Rim Working Interests (Details)	Mar. 31, 2013
Catalina Unit
Costs Incurred Oil And Gas Property Acquisition Exploration And Development Activities [Line Items]
Working Interest Acquired	14.33%
Working Interest Following Purchase	85.53%
Sun Dog
Costs Incurred Oil And Gas Property Acquisition Exploration And Development Activities [Line Items]
Working Interest Acquired	8.73%
Working Interest Following Purchase	28.59%
Doty Mountain
Costs Incurred Oil And Gas Property Acquisition Exploration And Development Activities [Line Items]
Working Interest Acquired	8.73%
Working Interest Following Purchase	26.73%