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Notes Payable (Tables)

12 Months Ended

Dec. 31, 2017

Notes Payable

Schedule of estimated future principal payments

        Estimated future principal payments at December 31, 2017 are as follows (in thousands):

Year Ending December 31,		Amount
2018			2,500
​	​	​	​	​
Total		$	2,500
Less: discount for warrants and costs paid to lenders			(21	)
Less: current portion			(2,479	)
​	​	​	​	​
Note payable, net of current portion and discount		$	—
​	​	​	​	​
​	​	​	​	​

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Tabular disclosure of the estimated future principal payments of notes payable.

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