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Debt Agreements | 6 Months Ended
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Jun. 30, 2018
Debt Disclosure [Abstract] |
Debt Disclosure [Text Block] |
| 8. | Debt Agreements
In July 2017, we entered into a venture loan and security agreement (“Original Loan Agreement”) with Horizon Technology Finance Corporation (“Horizon”), pursuant to which we received a loan in the amount of $7.0 million The Original Loan Agreement provided for repayment of the loan on an interest-only basis through December 31, 2018, followed by monthly payments of principal and accrued interest for the balance of the 46-month term. The loan bears interest at a floating coupon rate of one-month LIBOR (floor of 1.10%) plus 8.40%. A final payment equal to 5.0% of the loan will be due on the scheduled maturity date for such loan. The Original Loan Agreement also contained a prepayment penalty based on a percentage of the then outstanding principal balance, equal to 4% if the prepayment occurs during the interest-only payment period, 3% if the prepayment occurs during the 12 months following such period, and 2% thereafter. Our obligations under the Original Loan Agreement were secured by a first priority security interest in all of our assets, with the exception of our intellectual property. We agreed not to pledge or otherwise encumber our intellectual property assets, subject to certain exceptions. The Original Loan Agreement included customary affirmative and restrictive covenants, excluding any covenants to attain or maintain certain financial metrics, and also included customary events of default, including for payment failures, breaches of covenants, change of control and material adverse changes. Upon the occurrence of an event of default and following any applicable cure periods, a default interest rate of an additional 5% could be applied to the outstanding loan balance, and Horizon could declare all outstanding obligations immediately due and payable and take such other actions as set forth in such agreement. In connection with the Original Loan Agreement, we issued Horizon seven-year warrants to purchase an aggregate of 280,612 shares of our common stock (“Horizon Warrants”). The per share exercise price of the Horizon Warrants is the lower of (i) $1.96 or (ii) the price per share of any securities that may be issued by the Company in an equity financing during the 18 months following the agreement date. We agreed to file a registration statement covering the resale of the shares underlying the Horizon Warrants. In accordance with ASC 480, Distinguishing Liabilities from Equity , as amended by ASU, No. 2017-11, which we early adopted during 2017, the Horizon Warrants have been classified as equity and their fair value at the time of issuance was determined using a Lattice valuation model and was recorded in the Condensed Balance Sheet as a discount to the debt obligation. The key assumptions used to value the Horizon Warrants were as follows:
Assumption
Date of issuance |  |  | July 27, 2017 |
Expected price volatility |  |  | 47 | %
Expected term (in years) |  |  | 7.00 |
Risk-free interest rate |  |  | 2.12 | %
Dividend yield |  |  | 0.00 | %
Weighted-average fair value of warrants |  | $ | 1.02 |
The anti-dilution provisions contained in the outstanding Series A warrants were triggered by the Horizon Warrant issuance, resulting in a reduction of the exercise price of such warrants from $4.89 to $4.85 per share. On February 2, 2018, we entered into an amendment to the Original Loan Agreement (the “Amended Loan Agreement”) pursuant to which we prepaid $3.0 million of the outstanding $7.0 million principal amount and provided Horizon with a lien on our intellectual property. The other terms of the Original Loan Agreement remained unchanged. On March 21, 2018, we entered into an Amended and Restated Venture Loan and Security Agreement (the “Restated Loan Agreement”) with Horizon and Molteni pursuant to which Horizon assigned approximately $2.4 million of the $4.0 million outstanding principal balance of the loan to Molteni and Molteni was appointed collateral agent and assumed majority and administrative control of the debt. Under the Restated Loan Agreement, the interest only payment and forbearance periods were extended to December 31, 2019. In addition, Molteni has the right to convert its portion of the debt into shares of our common stock at a conversion price of $1.20 per share and is required to effect this conversion of debt to equity if we complete an equity financing resulting in gross proceeds of at least $10.0 million at a price per share of common stock in excess of $1.20 and repay the $1.6 million balance of Horizon’s loan amount. The lien on our intellectual property remains in place at this time. As the present value of the cash flows under the terms of the Restated Loan Agreement is less than 10% different from the remaining cash flows under the terms of the Amended Loan Agreement prior to being amended and restated, the Restated Loan Agreement was accounted for as a debt modification. Accordingly, expenses incurred as a result of the modification were expensed as incurred and the previously deferred fees and costs related to the debt will continue to be amortized over the remaining term along with the related warrants issued as part of the agreement described in Note 9 “Rights Agreement.” In connection with the Restated Loan Agreement, we issued Horizon seven-year warrants to purchase 40,000 shares of our common stock at an exercise price of $1.20 per share. The Horizon Warrants have been classified as equity and their fair value at the time of issuance was determined using a Black Scholes valuation model and was recorded in the Condensed Balance Sheet as a discount to the debt obligation. The key assumptions used to value the new Horizon warrants were as follows:
Assumption
Date of issuance |  |  | March 21, 2018 |
Expected price volatility |  |  | 86 | %
Expected term (in years) |  |  | 7.00 |
Risk-free interest rate |  |  | 2.82 | %
Dividend yield |  |  | 0.00 | %
Weighted-average fair value of warrants |  | $ | 0.81 |

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- Definition The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -URI http://asc.fasb.org/topic&trid=2208564 + Details
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