22.	Quarterly Results of Operation (Unaudited)

The following is a summary of the Company’s unaudited quarterly results of operations for the fiscal years ended December 31, 2017 and 2016 (in thousands, except per share amounts):

	Fiscal Year Ended December 31, 2017
	1st			2nd			3rd			4th			Total
	Quarter			Quarter			Quarter			Quarter			Year
Total revenues	$	1,946		$	1,584		$	183			3,398		$	7,111
Cost of revenue		1,334			972			921			3,500			6,727
Amortization of intangible assets		1,636			1,687			1,821			2,714			7,858
Change in fair value of contingent consideration		1,227			(774	)		773			800			2,026
Issuance costs for warrants		—			627			—			—			627
Other operating expenses		13,627			11,538			12,337			14,298			51,800
Change in fair value of warrant liabilities		—			2,326			22,887			58,521			83,734
Interest expense, net		394			662			695			684			2,435
Loss before income taxes		(16,272	)		(15,454	)		(39,251	)		(77,119	)		(148,096	)
Income tax benefit		858			741			738			963			3,300
Net loss	$	(15,414	)	$	(14,713	)	$	(38,513	)	$	(76,156	)	$	(144,796	)
Net loss per share - basic and diluted	$	(0.13	)	$	(0.11	)	$	(0.26	)	$	(0.40	)	$	(0.97	)

	Fiscal Year Ended December 31, 2016
	1st			2nd			3rd			4th			Total
	Quarter			Quarter			Quarter			Quarter			Year
Total revenues	$	—		$	—		$	1,466		$	53		$	1,519
Cost of revenue		—			—			1,031			38			1,069
Amortization of intangible assets		1,817			1,786			1,709			1,655			6,967
Goodwill impairment		—			61,784			—			—			61,784
Restructuring and other charges		—			3,085			—			(21	)		3,064
Inventory write-down related to restructuring		—			2,565			—			—			2,565
Other operating expenses		13,163			11,509			12,278			12,769			49,719
Interest expense, net		578			394			462			420			1,854
Loss before income taxes	$	(15,558	)	$	(81,123	)	$	(14,014	)	$	(14,808	)	$	(125,503	)
Income tax benefit	$	2,645		$	992		$	1,070		$	816		$	5,523
Net loss	$	(12,913	)	$	(80,131	)	$	(12,944	)	$	(13,992	)	$	(119,980	)
Net loss per share - basic and diluted	$	(0.12	)	$	(0.70	)	$	(0.11	)	$	(0.12	)	$	(1.07	)