2. Earnings Per Share (Details) (USD $)	3 Months Ended				6 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Earnings Per Share Details
Net income attributable to Earthstone Energy, Inc. Shareholders	$ 1,114,000		$ 1,224,000		$ 2,111,000		$ 1,917,000
Weighted average number of shares used in basic earnings per share	1,718,964		1,710,445		1,719,003		1,710,445
Effects of dilutive securities:
Unvested common shares*	$ 9,830	[1]	$ 0	[1]	$ 8,801	[1]	$ 0	[1]
Weighted average number of shares used in diluted earnings per share	1,728,794		1,710,445		1,727,804		1,710,445
Basic earnings per share attributable to Earthstone Energy, Inc. Shareholders	$ 0.65		$ 0.72		$ 1.23		$ 1.12
Diluted earnings per share attributable to Earthstone Energy, Inc. Shareholders	$ 0.64		$ 0.72		$ 1.22		$ 1.12

[1] *As of September 30, 2013, we have excluded unvested common shares outstanding from the calculation of diluted earnings per share, as the inclusion of these shares would have been anti-dilutive.