Indebtedness (Tables)

12 Months Ended

Dec. 31, 2014

Scheduled Monthly Principal Payments on Outstanding Debt

Scheduled monthly principal payments on outstanding debt, as of December 31, 2014, are as follows (in thousands):


2015	$	251
2016		3,117
2017		3,348
2018		3,284

	$	10,000

Rollforward of Fair Value of Convertible Notes/Warrants

The following table provides a roll forward of the fair value of the June 2013 Convertible Notes (in thousands):


Balance at January 1, 2013	$	—
Issuance of convertible notes payable at fair value		3,213
Change in fair value, recorded as interest expense		991
Conversion to series B preferred stock		(4,204	)

Balance at December 31, 2013	$	—

- Definition

Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability.

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