Liquidity and Capital Resources	3 Months Ended
Liquidity and Capital Resources	Mar. 31, 2021
Liquidity and Capital Resources [Abstract]
Liquidity and Capital Resources	Liquidity and Capital Resources Since inception, Rockwell has incurred significant net losses and has funded its operations primarily through revenue from commercial products, proceeds from the issuance of debt and equity securities and payments from partnerships. At March 31, 2021, Rockwell had an accumulated deficit of approximately $345.2 million and stockholders' equity of $26.2 million. As of March 31, 2021, Rockwell had approximately $46.1 million of cash, cash equivalents and investments available-for-sale, and working capital of $48.0 million. Net cash used in operating activities for the three months ended March 31, 2021 was approximately $12.5 million. Based on the currently available working capital, management believes the Company currently has sufficient funds to meet its operating requirements for at least the next twelve months from the date of the filing of this report. The Company expects it will require additional capital to sustain its operations and make the investments it needs to execute its strategic plan, including the commercialization of Triferic (dialysate) and Triferic AVNU in dialysis, generating additional data for Triferic in dialysis, developing FPC for iron deficiency anemia in patients undergoing home infusion and for progressing our pipeline development program of new indications for its FPC platform. If the Company is unable to generate sufficient revenue from sales of its commercial products and from partnerships, the Company will need to obtain additional equity or debt financing. If the Company attempts to obtain additional debt or equity financing, the Company cannot assume that such financing will be available on favorable terms, if at all. In addition, the Company is subject to certain covenants and cure provisions under its Loan Agreement with Innovatus. As of the date of this report, the Company is in compliance with all covenants. (See Note 15 for further detail). The COVID-19 pandemic and resulting domestic and global disruptions have adversely affected Rockwell's business and operations, including, but not limited to, our sales and marketing efforts, research and development activities, and the operations of third parties upon whom the Company relies. Quarantines, shelter-in-place, executive and similar government orders and the recent surge in infections domestically may continue to negatively impact Rockwell's sales and marketing activities, particularly if its sales representatives are unable to interact with current and potential customers to the same extent as before onset of the COVID-19 pandemic. The Company's international business development activities may also continue to be negatively impacted by COVID-19, especially with the recent surge in infections internationally, ongoing international travel restrictions and quarantines or shelter-in-place orders. The COVID-19 pandemic, the domestic and international surge in infections and resulting global disruptions have caused significant volatility in financial and credit markets. Rockwell has utilized a range of financing methods to fund its operations in the past; however, current conditions in the financial and credit markets may limit the availability of funding, refinancing or increase the cost of funding. Due to the rapidly evolving nature of the global situation, it is not possible to predict the extent to which these conditions could adversely affect the Company's liquidity and capital resources in the future.