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Debt | 3 Months Ended
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Mar. 31, 2017
Debt [Abstract] |
Debt Disclosure [Text Block] | Debt Notes Payable As of March 31, 2017 and December 31, 2016, the Company had notes payable of approximately $1.2 million and $1.1 million, respectively. The notes relate to certain insurance policies and equipment financings, require monthly payments, and mature within one to three years. Long-Term Debt On September 26, 2014, the Company entered into a loan and security agreement (the “Loan and Security Agreement”) with Oxford Finance LLC (together with its successors and assigns, the “Lender”) pursuant to which the Lender disbursed $15.0 million (the “Loan”). The debt offering/issuance costs have been recorded as debt issuance costs in other assets in the consolidated balance sheet, and will be amortized to interest expense throughout the life of the Loan using the effective interest rate method. On March 11, 2016, upon the sale of a 19.9% membership interest in PCT to Hitachi America and our entry into a technology license agreement with Hitachi America (collectively, the “March 2016 Hitachi Transaction”), the Company and the Lender entered into an amendment to the Loan and Security Agreement whereby (i) the Company paid $7.0 million to Lender, comprising principal, interest and early termination fees, (ii) the Company's subsidiaries PCT, PCT Allendale, LLC, and NeoStem Family Storage, LLC (collectively the "Removed Borrowers") were removed as borrowers under the Loan, (iii) Lender's security interests in any and all assets of the Removed Borrowers were released, (iv) the interest only period on the remaining outstanding Loan balance was extended until January 1, 2017, and (v) in the event the Company received gross proceeds from the sale or issuance of any equity securities or subordinated debt, or any partnership, licenses, collaboration, dividend, grant or asset sale through March 31, 2017, 20% of such proceeds will be paid to Lender, up to a $3.0 million maximum as additional partial repayment of Loan. On September 14, 2016, concurrent with the Company's September 2016 Registered Direct Offering and Concurrent Private Placement (see Note 12), the Company repaid $3.0 million of such proceeds to the Lender. The outstanding balance was approximately $4.9 million and $5.7 million at March 31, 2017 and December 31, 2016, respectively, of which $3.2 million is payable within twelve months as of March 31, 2017. The Company was making interest-only payments on the outstanding amount of the Loan on a monthly basis at a rate of 8.50% per annum through December 31, 2016. Commencing on January 1, 2017, the Company began making 21 consecutive monthly payments of principal and interest. The Loan matures on September 1, 2018. At its option, the Company may prepay all amounts owed under the Loan and Security Agreement (including all accrued and unpaid interest), subject to a prepayment fee that is determined based on the date the loan is prepaid. The Company is also required to pay Lender a final payment fee equal to 8% of the Loan. The final payment fee will be amortized to interest expense throughout the life of the Loan using the effective interest rate method. The Company paid a facility fee in the amount of $100,000 in connection with the Loan. Under the Loan and Security Agreement, the Lender holds a security interest ("Lenders' Security Interest") in all of the Company’s property, excluding the security interests in any and all assets of the Removed Borrowers, and excluding intellectual property and certain other assets and exemptions. The Lender also holds a security interest in the shares owned by the Company in the Company’s subsidiaries. The Loan and Security Agreement restricts the ability of the Company to: (a) convey, lease, sell, transfer or otherwise dispose of any part of Lenders' Security Interest and (b) incur any additional indebtedness. The Loan and Security Agreement provides for standard indemnification of Lender and contains representations, warranties and certain covenants of the Company. Upon the occurrence of an event of default by the Company under the Loan and Security Agreement, Lender will have customary acceleration, collection and foreclosure remedies. There are no financial covenants associated to the Loan and Security Agreement. As of March 31, 2017, the Company was in compliance with all covenants under the Loan and Security Agreement. Estimated future principal payments due under the Loan and Security Agreement are as follows:
Years Ending December 31, | (in thousands)
2017 | $ | 2,369.5 |
2018 | 2,524.9 |
Total | $ | 4,894.4 |
During the three months ended March 31, 2017 and March 31, 2016, the Company recognized $0.1 million and $0.3 million of interest expense, respectively, related to the Loan and Security Agreement.

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