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Oil and Gas Reserve Data - Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Reserves: (Details) (USD $) | 12 Months Ended
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Mar. 31, 2014 | Mar. 31, 2013 | Mar. 31, 2012
Extractive Industries [Abstract] |  |  |
Future cash inflows | $ 70,252,000 | $ 52,900,000 | $ 64,783,000
Future production costs and taxes | (20,647,000) | (14,893,000) | (16,031,000)
Future development costs | (4,826,362) | (4,850,000) | (4,530,000)
Future income taxes | (9,801,000) | (6,374,000) | (9,920,000)
Future net cash flows | 34,978,000 | 26,783,000 | 34,302,000
Annual 10% discount for estimated timing of cash flows | (15,649,000) | (12,414,000) | (14,946,000)
Standardized measure of discounted future net cash flows | $ 19,329,000 | $ 14,369,000 | $ 19,356,000

X
- Definition This is the amount that is derived from using a discount rate of ten percent a year to reflect the timing of the future net cash flows relating to proved oil and gas reserves. + References No definition available. + Details
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Balance Type: | credit
Period Type: | duration

X
- Definition Amount of estimated future cash inflows from sale of proved oil and gas reserves. + References No definition available. + Details
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X
- Definition The future cost of developing oil and gas from proved reserves located in this geographic region. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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X
- Definition The estimated future income tax expenses that will be incurred based on the future income less future expenses derived from production and sale of proved oil and gas reserves in this geographic region. + References No definition available. + Details
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- Definition Amount of estimated net future cash inflows, after subtracting future development and production costs and future income tax expenses, from sale of proved oil and gas reserves. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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X
- Definition The future cost of producing oil and gas from proved reserves located in this geographic region. + References No definition available. + Details
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- Definition This amount is the future net cash flows less the computed discount. + References No definition available. + Details
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- Details
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