4. Selected Balance Sheet Information

Prepaid expenses and other current assets (in thousands):

	December 31,		December 31,
	2016		2015
Prepaid clinical research organizations	$	1,677	$	8,329
Prepaid insurances		358		339
Other prepaid expenses		295		208
Other receivables		185		-
Intrexon prepaid research and development expenses		-		643

Total	$	2,515	$	9,519

The Intrexon prepaid research and development expenses were classified as a current asset at December 31, 2015. As of December 31, 2016, the Company had applied all of the Intrexon prepaid research and development expenses to research and development expenses.

Prepaid clinical research organization expense is classified as a current asset. The Company makes payments to the clinical research organizations based on agreed upon terms that includes payments in advance of study services. The Company anticipates that the majority of the prepaid clinical research organization expenses will be applied to research and development expenses during 2017.

Property and equipment (in thousands):

	December 31,		December 31,
	2016		2015
Computer and office equipment	$	641	$	346
Software		11		11
Leasehold improvements		439		242
		1,091		599
Less accumulated depreciation and amortization		(186)		(105)

Total	$	905	$	494

Accrued expenses (in thousands):

	December 31,		December 31,
	2016		2015
Accrued manufacturing costs	$	14	$	-
Accrued vendor payments		400		133
Accrued clinical consulting services		2,211		164
Other accrued expenses		2		-

Total	$	2,627	$	297