Selected Balance Sheet Information (Tables)

12 Months Ended

Dec. 31, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Other Current Assets [Table Text Block]

PREPAID EXPENSES AND OTHER CURRENT ASSETS:

	December 31, 2018		December 31, 2017
Prepaid insurances	$	419	$	351
Prepaid consulting, subscriptions and other expenses		132		290
Prepaid conferences, travel		42		94
Prepaid clinical research organizations		-		46
Clinical consulting services refund receivable		-		46
Total	$	593	$	827

Property, Plant and Equipment [Table Text Block]

PROPERTY AND EQUIPMENT

	December 31, 2018			December 31 2017
Computers and office equipment	$	852		$	851
Leasehold improvements		439			439
Software		11			11
		1,302			1,301
Less: accumulated depreciation and amortization		(695	)		(429	)
Total	$	607		$	872

Accrued Expenses [Table Text Block]

ACCRUED EXPENSES

		December 31, 2018		December 31,  2017
Accrued clinical consulting services	$	674	$	658
Accrued vendor payments		150		193
Accrued manufacturing costs		83		661
Other accrued expenses		12		14
Total	$	919	$	1,526

Accrued Employee Benefits [Table Text Block]

ACCRUED EMPLOYEE BENEFITS

	December 31, 2018		December 31, 2017
Accrued bonus expense	$	907	$	1,283
Accrued severance		307		590
Accrued vacation expense		118		201
Total	$	1,332	$	2,074