Subsequent Events (Details) - Subsequent Event - USD ($) $ / shares in Units, $ in Millions	Apr. 23, 2020	Apr. 21, 2020
Subsequent Event [Line Items]
Proceeds from sale of NOLs		$ 10.9
Gross price for stock transaction	$ 5.0
RD Purchase Agreement
Subsequent Event [Line Items]
Number of shares sold (in shares)	2,162,166
Price of shares sold (in dollars per share)	$ 2.3125
Private placement
Subsequent Event [Line Items]
Number of shares called by warrants issued	1,081,083
Number of shares called by each warrant	1
Warrant exercise price (in dollars per share)	$ 2.25
Warrants expiration term	5 years 6 months

Proceeds From Sale Of Net Operating Losses, NJEDA Program

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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
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- Definition

Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares.

+ References

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Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 235
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Cash received on stock transaction after deduction of issuance costs.

+ References

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The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

+ References

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Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

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- Definition

Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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