Selected Balance Sheet Information (Tables)

9 Months Ended

Sep. 30, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Other Current Assets [Table Text Block]

Prepaid expenses and other current assets (in thousands)

	September 30,  2018		December 31,  2017
Prepaid conferences, travel	$	230	$	94
Prepaid consulting, subscriptions and other expenses		184		290
Other receivable		86		-
Prepaid insurances		59		351
Clinical consulting services refund receivable		-		46
Prepaid clinical research organizations		-		46
Total	$	559	$	827

Property, Plant and Equipment [Table Text Block]

Property and equipment, net (in thousands)

	September 30,  2018			December 31  2017
Computers and office equipment	$	851		$	851
Leasehold improvements		439			439
Software		11			11
		1,301			1,301
Less: accumulated depreciation and amortization		(636	)		(429	)
Total	$	665		$	872

Accrued Expenses [Table Text Block]

Accrued expenses (in thousands)

	September 30, 2018		December 31, 2017
Accrued clinical consulting services	$	1,167	$	658
Accrued vendor payments		243		193
Accrued manufacturing costs		64		661
Other accrued expenses		11		14
Total	$	1,485	$	1,526

Accrued Employee Benefits [Table Text Block]

Accrued employee benefits (in thousands)

	September 30, 2018		December 31, 2017
Accrued bonus expense	$	1,007	$	1,283
Accrued vacation expense		289		201
Accrued severance		138		590
Total	$	1,434	$	2,074