Subsequent Events	12 Months Ended
Subsequent Events	Dec. 31, 2019
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Coronavirus Aid, Relief and Economic Security (CARES) Act On March 27, 2020, the “Coronavirus Aid, Relief and Economic Security (CARES) Act” was signed into law. The Act includes provisions relating to refundable payroll tax credits, deferment of the employer portion of certain payroll taxes, loans and grants to certain business, net operating loss carryback periods, alternative minimum tax credit refunds, modifications to the net interest deduction limitations and technical corrections to tax depreciation methods for qualified improvement property. The Company applied for and received a $10.0 million loan under the Paycheck Protection Program. On May 11, 2020 the Company repaid the PPP loan. In addition, modifications to the tax rules for carryback of net operating losses are expected to result in an estimated federal tax refund of $11.3 million and a resulting income tax benefit. The COVID-19 pandemic and governmental and societal responses thereto have affected the Company’s business, results of operations and financial condition. The continuation or a second-wave outbreak of COVID-19 or the outbreak of other health epidemics could harm the Company’s operations and increase the Company’s costs and expenses in numerous ways. The ultimate impact of the COVID-19 pandemic is highly uncertain and subject to change. The Company does not yet know the full extent of delays or impacts on the business, clinical trials, healthcare systems or the global economy as a whole, or how long such effects will endure. The effects of the COVID-19 pandemic or other health epidemics could have an adverse impact on the Company’s business, results of operations and financial condition. Sublease On April 1, 2020 the Company successfully subleased its industrial warehouse space that expires on May 31, 2023. The Company performed an asset recovery test comparing the sum of estimated undiscounted future cash flows attributable to the sublease to its carrying amount. The total undiscounted cash flows for the remaining lease term exceed the carrying amount of the asset, therefore there is no impairment. BT Term Loan Amendment On April 22, 2020, the Company amended its BT Loan Agreement with Blue Torch. The amendment provided for an increase in the maximum Total Leverage Ratio (as defined in the BT Loan Agreement), which was a quarterly test, for the remainder of 2020, and also provided for a reduction in the minimum Liquidity (as defined in the BT Loan Agreement) requirement from April 2020 through and including November 2020. Specifically, the maximum Total Leverage Ratio increased from 3.0 to 1.0 to 5.0 to 1.0 through December 31, 2020. The minimum Liquidity requirement was reduced from $40.0 million to $20.0 million for April and May 2020, and from $30.0 million to $20.0 million for June through November 2020. In connection with the amendment, the Company agreed to pay a one-time fee of approximately $0.7 million, added to the principal balance, and a 1 percentage point increase in the interest rate to LIBOR plus 9%. Repayment and Termination of BT Loan Agreement On July 2, 2020, the Company terminated the BT Loan Agreement and repaid the $72.0 million outstanding balance of principal and accrued but unpaid interest under the BT Loan Agreement. As a result of the early repayment of the loans under the BT Loan Agreement, the Company also paid a prepayment premium in the amount of $1.4 million. The Company paid the outstanding balance, accrued but unpaid interest, and prepayment premium using a portion of the proceeds from the Preferred Stock Transaction and the Hayfin Loan Transaction. Issuance of $100 Million of Series B Convertible Preferred Stock On July 2, 2020, the Company issued $100 million of the Company’s Series B Convertible Preferred Stock, par value $0.001 per share (the “Series B Preferred Stock”) to an affiliate of EW Healthcare Partners and certain funds managed by Hayfin Capital Management LLP pursuant to a Securities Purchase Agreement with Falcon Fund 2 Holding Company, L.P., an affiliate of EW Healthcare Partners, and certain funds managed by Hayfin Capital Management LLP, dated as of June 30, 2020, for an aggregate purchase price of $100,000,000 (the “Preferred Stock Transaction”). See Item 9B, “Other Information.” $75 Million Loan Facility with Hayfin On June 30, 2020, the Company entered into a Loan Agreement with, among others, Hayfin Services, LLP, an affiliate of Hayfin Capital Management LLP (the “Hayfin Loan Agreement”), which was funded on July 2, 2020 (the “Hayfin Loan Transaction”) and provided the Company with a senior secured term loan in an aggregate amount of $50 million (the “Term Loan”) and an additional $25 million delayed draw term loan (the “DD TL”) in the form of a committed but undrawn facility. The Term Loan and the DD TL mature on July 2, 2025 (the “Maturity Date”). The Term Loan and the DD TL have no fixed amortization (i.e. interest only through the Maturity Date). Borrowings under the Hayfin Loan Agreement bear interest at a rate equal to LIBOR (subject to a floor of 1.5%) plus a margin of 6.75%. The margin will be eligible to step down to 6.5% or 6.0% based on future Total Net Leverage levels, as defined in the Hayfin Loan Agreement. The Company paid an upfront commitment fee of 2% of the aggregate of the Hayfin Term Loan and the DD TL. The DD TL is subject to an additional commitment fee of 1% of the amount undrawn. The Hayfin Loan Agreement contains certain affirmative covenants that impose certain reporting and/or performance obligations on the Company and its subsidiaries, including (i) Maximum Total Net Leverage of 5.0x through December 31, 2020, stepping down to 4.5x through June 30, 2021, and to 4.0x thereafter until the Maturity Date; (ii) Cap on Cash Netting for the purposes of calculation Total Net Leverage set at $10,000,000; (iii) DD TL Incurrence Covenant of 3.5x Total Net leverage, tested prior to any drawings under the DD TL; and (iv) Minimum Liquidity of $10M, an at-all-times covenant tested monthly.