Business Combination (Tables)

12 Months Ended

Dec. 31, 2016

Business Combinations [Abstract]

Summary of purchase price allocation

Cash and cash equivalents	$	136
Prepaid expenses and other assets	1,162
Property and equipment	867
In-process research and development - U.S. Vicinium	12,200
In-process research and development - E.U. Vicinium	41,100
In-process research and development - R.O.W. Vicinium	7,200
Goodwill	16,864
Accounts payable	(1,163		)
Accrued expenses	(1,494		)
Other liabilities	(812		)
Deferred tax liability	(16,335		)
	$	59,725

Schedule of previously reported fair values and currently reported fair value

The previously reported fair values and the currently reported fair values as of the Acquisition Date, including Contingent Consideration, are reflected in the following table (in thousands):

	Previously Reported			Currently Reported
In-process research and development - Vicinium	$	35,400		$	—
In-process research and development - U.S. Vicinium	$	—		$	12,200
In-process research and development - E.U. Vicinium	$	—		$	41,100
In-process research and development - R.O.W. Vicinium	$	—		$	7,200
In-process research and development - Proxinium	$	800		$	—
Goodwill	$	10,312		$	16,864
Deferred tax liability	$	(9,774	)	$	(16,335	)
Contingent Consideration	$	(21,900	)	$	(46,200	)

Summary of pro forma financial information

The unaudited estimated pro forma results presented below include the effects of the Acquisition as if it had been consummated as of the beginning of each period. The pro forma results include the direct expenses of Viventia as well as the additional depreciation expense as a result of the increase in the fair value of the fixed assets. The pro forma results exclude the costs of the transaction, severance and stock-based compensation expenses, the Viventia forgiveness of debt and the related interest expense in connection with the Acquisition. In addition, the pro forma results do not include any anticipated synergies or other expected benefits of the Acquisition. Accordingly, the unaudited estimated pro forma financial information below is not necessarily indicative of either future results of operations or results that might have been achieved had the Acquisition been consummated as of the beginning of each period (in thousands):

	Year Ended December 31,
	2016			2015
Revenue	$	29,981		$	990
Net loss	(3,026		)	(47,483		)