Accrued consulting fees and reimbursable expenses.

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Consulting fee paid.

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Ownership interest number of shares.

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Ownership interest percentage.

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Release of collateral, net of expenses incurred.

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Repayment of pledged collateral amount.

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Carrying amount as of the balance sheet date of obligations due all related parties.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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The amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Utilities costs incurred during the reporting period for services, such as water, sewer, gas, electricity and telephone required to operate a building.

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Related Party Transactions - Additional Information (Detail) - USD ($)	1 Months Ended	12 Months Ended
	Apr. 30, 2016	Mar. 31, 2017	Mar. 31, 2016	Jun. 15, 2017	Sep. 15, 2016	Jun. 19, 2016	Apr. 29, 2016
Related Party Transaction [Line Items]
Accrued consulting fees and reimbursable expenses			$ 12,000
Mr. Will
Related Party Transaction [Line Items]
Consulting fee paid	$ 12,000
The Grande Holdings Limited (“Grande”)
Related Party Transaction [Line Items]
Grande's Ownership Interest in Emerson number of shares					15,243,283
Grande's Ownership Interest Percentage					56.30%
The Grande Holdings Limited (“Grande”) \| Chairman of Board
Related Party Transaction [Line Items]
Grande's (Provisional Liquidator Appointed) Ownership Interest Percentage						72.30%
The Grande Holdings Limited (“Grande”) \| Chairman of Board \| Subsequent Event
Related Party Transaction [Line Items]
Grande's (Provisional Liquidator Appointed) Ownership Interest Percentage				73.50%
S&T
Related Party Transaction [Line Items]
Repayment of pledged collateral amount	500,000
Release of collateral, net of expenses incurred							$ 421,000
S&T \| IRS
Related Party Transaction [Line Items]
Expenses incurred in defending IRS challenge	$ 79,000
GPML and LSSL \| Chairman of Board
Related Party Transaction [Line Items]
Utility and service charges		$ 14,000	0
GPML \| Chairman of Board
Related Party Transaction [Line Items]
Due to related parties for utility and service charges		0	0
LSSL \| Chairman of Board
Related Party Transaction [Line Items]
Due to related parties for utility and service charges		$ 0	$ 0