Stock-Based Compensation and Warrants - Assumptions (Details) - $ / shares	1 Months Ended
Oct. 10, 2018	Dec. 26, 2017	Dec. 31, 2019	Dec. 31, 2018	Oct. 10, 2014
Closing stock price	$ 0.88	$ 18.55		$ 0.56	$ 61.25
Expected life of warrant (years)		4 years 11 months 1 day	5 years
Expected Volatility [Member]
Warrants, Measurement Input	90.00%	85.00%
Risk Free Interest Rate [Member]
Warrants, Measurement Input	3.01%	2.42%

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.

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

Name:	us-gaap_WarrantsAndRightsOutstandingTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant