| Component: (Network and Table) | |
|---|---|
| Network | 100220 - Disclosure - Equity Financings and Warrants (Tables) (http://www.arcabiopharma.com/20161231/taxonomy/role/DisclosureEquityFinancingsAndWarrantsTables) |
| Table | (Implied) |
| Reporting Entity [Axis] | 0000907654 (http://www.sec.gov/CIK) |
| Equity [Abstract] | Period [Axis] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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2016-01-01 - 2016-12-31 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Equity [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Summary of Warrants by Year of Expiration | As of December 31, 2016, these warrants, by year of expiration, are summarized below:
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