Quarterly report pursuant to Section 13 or 15(d)

Oil and Gas Activities (Details)

v2.4.1.9
Oil and Gas Activities (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Mar. 31, 2015
Mar. 31, 2014
Jun. 30, 2014
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]          
Proved oil and gas properties $ 29,850us-gaap_ProvedOilAndGasPropertySuccessfulEffortMethod   $ 29,850us-gaap_ProvedOilAndGasPropertySuccessfulEffortMethod   $ 29,335us-gaap_ProvedOilAndGasPropertySuccessfulEffortMethod
Unproved oil and gas properties 695us-gaap_UnprovedOilAndGasPropertySuccessfulEffortMethod   695us-gaap_UnprovedOilAndGasPropertySuccessfulEffortMethod   550us-gaap_UnprovedOilAndGasPropertySuccessfulEffortMethod
Wells in progress 27,464us-gaap_ConstructionInProgressGross   27,464us-gaap_ConstructionInProgressGross   21,296us-gaap_ConstructionInProgressGross
Loss from continuing operations, net of tax (2,280)us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest (3,072)us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest (7,793)us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest (9,364)us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest  
United States          
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]          
Proved oil and gas properties 29,850us-gaap_ProvedOilAndGasPropertySuccessfulEffortMethod
/ us-gaap_StatementGeographicalAxis
= country_US
  29,850us-gaap_ProvedOilAndGasPropertySuccessfulEffortMethod
/ us-gaap_StatementGeographicalAxis
= country_US
  29,335us-gaap_ProvedOilAndGasPropertySuccessfulEffortMethod
/ us-gaap_StatementGeographicalAxis
= country_US
Less accumulated depletion, depreciation, amortization, and accretion (4,056)us-gaap_OilAndGasPropertySuccessfulEffortMethodAccumulatedDepreciationDepletionAndAmortization
/ us-gaap_StatementGeographicalAxis
= country_US
  (4,056)us-gaap_OilAndGasPropertySuccessfulEffortMethodAccumulatedDepreciationDepletionAndAmortization
/ us-gaap_StatementGeographicalAxis
= country_US
  (3,575)us-gaap_OilAndGasPropertySuccessfulEffortMethodAccumulatedDepreciationDepletionAndAmortization
/ us-gaap_StatementGeographicalAxis
= country_US
Total net proved oil and gas properties 25,794us-gaap_OilAndGasPropertySuccessfulEffortMethodNet
/ us-gaap_StatementGeographicalAxis
= country_US
  25,794us-gaap_OilAndGasPropertySuccessfulEffortMethodNet
/ us-gaap_StatementGeographicalAxis
= country_US
  25,760us-gaap_OilAndGasPropertySuccessfulEffortMethodNet
/ us-gaap_StatementGeographicalAxis
= country_US
Unproved oil and gas properties 468us-gaap_UnprovedOilAndGasPropertySuccessfulEffortMethod
/ us-gaap_StatementGeographicalAxis
= country_US
  468us-gaap_UnprovedOilAndGasPropertySuccessfulEffortMethod
/ us-gaap_StatementGeographicalAxis
= country_US
  268us-gaap_UnprovedOilAndGasPropertySuccessfulEffortMethod
/ us-gaap_StatementGeographicalAxis
= country_US
Wells in progress 25,769us-gaap_ConstructionInProgressGross
/ us-gaap_StatementGeographicalAxis
= country_US
  25,769us-gaap_ConstructionInProgressGross
/ us-gaap_StatementGeographicalAxis
= country_US
  19,686us-gaap_ConstructionInProgressGross
/ us-gaap_StatementGeographicalAxis
= country_US
United Kingdom          
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]          
Unproved oil and gas properties 227us-gaap_UnprovedOilAndGasPropertySuccessfulEffortMethod
/ us-gaap_StatementGeographicalAxis
= country_GB
  227us-gaap_UnprovedOilAndGasPropertySuccessfulEffortMethod
/ us-gaap_StatementGeographicalAxis
= country_GB
  282us-gaap_UnprovedOilAndGasPropertySuccessfulEffortMethod
/ us-gaap_StatementGeographicalAxis
= country_GB
Wells in progress 1,695us-gaap_ConstructionInProgressGross
/ us-gaap_StatementGeographicalAxis
= country_GB
  1,695us-gaap_ConstructionInProgressGross
/ us-gaap_StatementGeographicalAxis
= country_GB
  1,610us-gaap_ConstructionInProgressGross
/ us-gaap_StatementGeographicalAxis
= country_GB
Australia          
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]          
Unproved oil and gas properties $ 0us-gaap_UnprovedOilAndGasPropertySuccessfulEffortMethod
/ us-gaap_StatementGeographicalAxis
= country_AU
  $ 0us-gaap_UnprovedOilAndGasPropertySuccessfulEffortMethod
/ us-gaap_StatementGeographicalAxis
= country_AU
  $ 0us-gaap_UnprovedOilAndGasPropertySuccessfulEffortMethod
/ us-gaap_StatementGeographicalAxis
= country_AU