Purchase Agreement (Narrative) (Details) (USD $)	6 Months Ended			0 Months Ended
	Sep. 30, 2014	Aug. 18, 2014	Sep. 30, 2014 TEC [Member] T-Rex Oil, Inc. [Member]	Aug. 19, 2014 Restricted common stock [Member] TEC [Member] T-Rex Oil, Inc. [Member]	Aug. 18, 2014 Securities Purchase Agreement [Member] TEC [Member]
Purchase Agreement [Line items]
Number of pre-reverse shares issued				129,851,356
Value of pre-reverse shares issued	$ 1,300,000			$ 1,300,000
Ownership percentage		52.00%	52.00%
Pre-reverse shares issued and outstanding					119,862,791