Organization	9 Months Ended
Sep. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	Organization Vericel Corporation, a Michigan corporation (together with its consolidated subsidiaries referred to herein as the Company, Vericel, we, us or our), was incorporated in March 1989 and began employee-based operations in 1991. On May 30, 2014, Vericel completed the acquisition of certain assets and assumed certain liabilities of Sanofi, a French société anonyme (Sanofi), including all of the outstanding equity interests of Genzyme Biosurgery ApS (Genzyme Denmark or the Danish subsidiary) (now known as Vericel Denmark ApS), a wholly-owned subsidiary of Sanofi, and a portfolio of patents and patent applications of Sanofi and certain of its subsidiaries for purposes of acquiring the portion of the cell therapy and regenerative medicine business (the CTRM Business), related to the MACI^®, Carticel^® and Epicel^® products. The Company is a fully integrated, commercial-stage biopharmaceutical company and currently markets MACI^® and Epicel^® in the U.S. The Company is a leader in advanced cell therapies for the sports medicine and severe burn care markets and a developer of patient-specific expanded cell therapies for use in the treatment of patients with severe diseases and conditions. MACI^® (autologous cultured chondrocytes on porcine collagen membrane) is an autologous cellularized scaffold product indicated for the repair of symptomatic, single or multiple full-thickness cartilage defects of the knee with or without bone involvement in adults that was approved by the FDA on December 13, 2016. The first shipment and implantation of MACI occurred on January 31, 2017. At the end of the second quarter of 2017, the Company removed MACI’s predecessor, Carticel^® (autologous cultured chondrocytes), from the market. Carticel is an autologous chondrocyte implant indicated for the repair of symptomatic cartilage defects of the femoral condyle (medial, lateral or trochlea), caused by acute or repetitive trauma, in patients who have had an inadequate response to a prior arthroscopic or other surgical repair procedure (e.g., debridement, microfracture, drilling/abrasion arthroplasty, or osteochondral allograft/autograft). The Company also markets Epicel^® (cultured epidermal autografts), a permanent skin replacement Humanitarian Use Device (HUD) for the treatment of patients with deep-dermal or full-thickness burns comprising greater than or equal to 30 percent of total body surface area (TBSA). The Company operates its business primarily in the U.S. in one reportable segment — the research, product development, manufacture and distribution of patient-specific, expanded cellular therapies for use in the treatment of specific diseases. The accompanying condensed consolidated financial statements have been prepared on a basis, which assumes that the Company will continue as a going concern and contemplates the realization of assets and satisfaction of liabilities and commitments in the normal course of business. As of September 30, 2018, the Company has an accumulated deficit of $374.3 million and had a net loss of $1.1 million during the quarter ended September 30, 2018. The Company had cash and cash equivalents of $53.3 million, and short term investments of $44.5 million as of September 30, 2018. The Company expects that existing cash, cash equivalents and short term investments together with its term loan and revolving line of credit agreement with Silicon Valley Bank (SVB) and MidCap Financial Services (MidCap) (the SVB-MidCap facility), will be sufficient to support the Company's current operations through at least November 2019. In connection with the SVB-MidCap facility, the Company must remain in compliance with minimum monthly net revenue covenants (determined in accordance with U.S. GAAP), measured on a trailing twelve month basis. SVB and MidCap also have the ability to call debt based on material adverse change clauses, which are subjectively determinable and result in a subjective acceleration clause. If the Company is not in compliance with the monthly net revenue covenants or the subjective acceleration clauses are triggered under the SVB-MidCap facility, then SVB may call the debt. As of September 30, 2018, the Company was in compliance with the minimum revenue covenant set forth in the Third Loan Modification Agreement between the Company, SVB and MidCap. The Company may seek additional funding through debt or equity financings. However, the Company may not be able to obtain financing on acceptable terms or at all. The terms of any financing may adversely affect the holdings or the rights of the Company's shareholders.

Organization

Vericel Corporation, a Michigan corporation (together with its consolidated subsidiaries referred to herein as the Company, Vericel, we, us or our), was incorporated in March 1989 and began employee-based operations in 1991. On May 30, 2014, Vericel completed the acquisition of certain assets and assumed certain liabilities of Sanofi, a French société anonyme (Sanofi), including all of the outstanding equity interests of Genzyme Biosurgery ApS (Genzyme Denmark or the Danish subsidiary) (now known as Vericel Denmark ApS), a wholly-owned subsidiary of Sanofi, and a portfolio of patents and patent applications of Sanofi and certain of its subsidiaries for purposes of acquiring the portion of the cell therapy and regenerative medicine business (the CTRM Business), related to the MACI^®, Carticel^® and Epicel^® products. The Company is a fully integrated, commercial-stage biopharmaceutical company and currently markets MACI^® and Epicel^® in the U.S. The Company is a leader in advanced cell therapies for the sports medicine and severe burn care markets and a developer of patient-specific expanded cell therapies for use in the treatment of patients with severe diseases and conditions. MACI^® (autologous cultured chondrocytes on porcine collagen membrane) is an autologous cellularized scaffold product indicated for the repair of symptomatic, single or multiple full-thickness cartilage defects of the knee with or without bone involvement in adults that was approved by the FDA on December 13, 2016. The first shipment and implantation of MACI occurred on January 31, 2017. At the end of the second quarter of 2017, the Company removed MACI’s predecessor, Carticel^® (autologous cultured chondrocytes), from the market. Carticel is an autologous chondrocyte implant indicated for the repair of symptomatic cartilage defects of the femoral condyle (medial, lateral or trochlea), caused by acute or repetitive trauma, in patients who have had an inadequate response to a prior arthroscopic or other surgical repair procedure (e.g., debridement, microfracture, drilling/abrasion arthroplasty, or osteochondral allograft/autograft). The Company also markets Epicel^® (cultured epidermal autografts), a permanent skin replacement Humanitarian Use Device (HUD) for the treatment of patients with deep-dermal or full-thickness burns comprising greater than or equal to 30 percent of total body surface area (TBSA). The Company operates its business primarily in the U.S. in one reportable segment — the research, product development, manufacture and distribution of patient-specific, expanded cellular therapies for use in the treatment of specific diseases.

The accompanying condensed consolidated financial statements have been prepared on a basis, which assumes that the Company will continue as a going concern and contemplates the realization of assets and satisfaction of liabilities and commitments in the normal course of business. As of September 30, 2018, the Company has an accumulated deficit of $374.3 million and had a net loss of $1.1 million during the quarter ended September 30, 2018. The Company had cash and cash equivalents of $53.3 million, and short term investments of $44.5 million as of September 30, 2018. The Company expects that existing cash, cash equivalents and short term investments together with its term loan and revolving line of credit agreement with Silicon Valley Bank (SVB) and MidCap Financial Services (MidCap) (the SVB-MidCap facility), will be sufficient to support the Company's current operations through at least November 2019. In connection with the SVB-MidCap facility, the Company must remain in compliance with minimum monthly net revenue covenants (determined in accordance with U.S. GAAP), measured on a trailing twelve month basis. SVB and MidCap also have the ability to call debt based on material adverse change clauses, which are subjectively determinable and result in a subjective acceleration clause. If the Company is not in compliance with the monthly net revenue covenants or the subjective acceleration clauses are triggered under the SVB-MidCap facility, then SVB may call the debt. As of September 30, 2018, the Company was in compliance with the minimum revenue covenant set forth in the Third Loan Modification Agreement between the Company, SVB and MidCap. The Company may seek additional funding through debt or equity financings. However, the Company may not be able to obtain financing on acceptable terms or at all. The terms of any financing may adversely affect the holdings or the rights of the Company's shareholders.