Subsequent Events (Details) - USD ($)	Oct. 09, 2018	Sep. 30, 2018	Feb. 23, 2018	Dec. 31, 2017	Sep. 16, 2013
Subsequent Event [Line Items]
Series A redeemable convertible preferred stock issued (in shares)		900,000		900,000
Series A Redeemable convertible preferred stock, shares outstanding (in shares)		900,000		900,000
Financing Of Units | New Investors | Subsequent Event
Subsequent Event [Line Items]
Aggregate amount of debt	$ 1,000,000
Debt purchased by new lender	$ 520,000
Commitment Loan | HCP-FVA, LLC
Subsequent Event [Line Items]
Aggregate amount of debt			$ 3,000,000
Number of warrants subscribed (in shares)			30,000,000
Series A redeemable convertible preferred stock | New Investors | Subsequent Event
Subsequent Event [Line Items]
Series A redeemable convertible preferred stock issued (in shares)	342,000
Series A redeemable convertible preferred stock | HCP-FVA, LLC
Subsequent Event [Line Items]
Series A Redeemable convertible preferred stock, shares outstanding (in shares)					900,000
Financing Warrants | Financing Of Units | New Investors | Subsequent Event
Subsequent Event [Line Items]
Warrants outstanding (in shares)	185,942,007
Financing Warrants | Financing Of Units | HCP-FVA, LLC | Subsequent Event
Subsequent Event [Line Items]
Warrants outstanding (in shares)	303,379,065
Financing Warrants | Commitment Loan | HCP-FVA, LLC | Subsequent Event
Subsequent Event [Line Items]
Warrants cancelled (in shares)	63,610,935