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Stockholders' Equity and Dilutive Equity Instruments - Summary of Common Shares and Creditor Warrants and Sum of Common Shares and Creditor Warrants Outstanding (Parenthetical) (Details) - $ / shares	Mar. 31, 2020	Mar. 31, 2019
New Creditor Warrants (Strike Price $0.001 Per Common Share)
Stockholders Equity Note [Line Items]
Strike price per common share	$ 0.001	$ 0.001
GulfMark Creditor Warrants (Strike Price $0.01 Per Common Share)
Stockholders Equity Note [Line Items]
Strike price per common share	$ 0.01	$ 0.01

X

- Definition

Stockholders Equity Note [Line Items]

+ References

No definition available.

+ Details

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- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(4))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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