Selected Balance Sheet Information (Tables)

12 Months Ended

Dec. 31, 2014

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Other Current Assets [Table Text Block]

Prepaid expenses and other current assets (in thousands):

	December 31,
	2014		2013
Intrexon prepaid research and development expenses – See Note 7	$	1,067	$	1,361
Prepaid insurances		228		177
Prepaid expenses		253		53
Total	$	1,548	$	1,591

Property, Plant and Equipment [Table Text Block]

Property and equipment (in thousands):

	December 31,
	2014			2013
Computer and office equipment	$	93		$	45
Software		11			11
		104			56
Less accumulated depreciation		(39	)		(19	)
Total	$	65		$	37

Accrued Expenses [Table Text Block]

Accrued expenses (in thousands):

	December 31,
	2014		2013
Accrued manufacturing costs	$	247	$	662
Accrued vendor payments		176		220
Accrued milestone payments		350		—
Accrued clinical consulting services		525		—
Total	$	1,298	$	882