Related Party Transactions - Additional Information (Detail) (USD $)				1 Months Ended			3 Months Ended	6 Months Ended			3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended
	Sep. 30, 2014	Aug. 31, 2012	Mar. 02, 2010	Jul. 31, 2013 Lafe Strategic Services Limited	Apr. 01, 2013 Lafe Strategic Services Limited	Jul. 09, 2014 Grande	Sep. 30, 2013 Mr. Eduard Will, a director of Emerson	Sep. 30, 2013 Mr. Eduard Will, a director of Emerson	Sep. 30, 2013 Amount owed from Emerson to Brighton Marketing Limited	Mar. 31, 2014 Amount owed from Emerson to Brighton Marketing Limited	Sep. 30, 2013 Grande Properties Management Limited	Sep. 30, 2013 Grande Properties Management Limited	Sep. 30, 2013 Vigers Appraisal & Consulting Ltd	Sep. 30, 2013 Vigers Appraisal & Consulting Ltd
Related Party Transaction [Line Items]
Grande's (Provisional Liquidator Appointed) Ownership Interest in Emerson number of shares						15,243,283
Grande's (Provisional Liquidator Appointed) Ownership Interest Percentage						56.20%
Service charge from related party									$ 1,000		$ 4,000	$ 8,000
Amount owed to related party							0	0	0	0	0	0
Security deposit returned				6,000
Amount receivable from related party					0								0	0
Consulting fees paid to related party							29,000	58,000
Extraordinary dividend declared			$ 1.10
Company's assertion as to the percent of the dividend that is taxable to the recipient			4.90%
Internal Revenue Service's assertion as to the percent of the dividend that is taxable to the recipient, which the company is refuting		100.00%
Restricted cash	500,000
Estimated additional taxes, penalties and interest	4,700,000
Amount invoiced to related party													$ 1,000	$ 2,000