Oil and Gas Reserve Data - Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Reserves: (Details) (USD $)	12 Months Ended
	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