Convertible Senior Secured Notes (Tables)

12 Months Ended

Dec. 31, 2016

Convertible Senior Secured Notes

Summary of issuance of Notes reflected in balance sheet

The table below summarizes activity related to the Notes from issuance on May 3, 2013 through December 31, 2016, in thousands:

Gross proceeds	$	90,000
Initial value of interest make-whole derivative reported as debt discount		(9,270	)
Conversion option reported as debt discount and APIC		(22,336	)
Conversion of debt to equity—principal		(81,463	)
Conversion of debt to equity—accretion of debt discount and deferred financing costs		25,003
Accretion of debt discount and deferred financing costs		5,151
December 31, 2015 carrying value		7,085
Conversion of debt to equity—principal		(3,962	)
Conversion of debt to equity—accretion of debt discount and deferred financing costs		764
Accretion of debt discount and deferred financing costs		278
December 31, 2016 carrying value	$	4,165