Segment Reporting (Details Narrative) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2019 USD ($) Products	Sep. 30, 2018 USD ($)	Dec. 31, 2018 USD ($)
Number of operating segments | Products	1
Number of reportable segments | Products	2
Total assets	$ 11,554		$ 10,558
Sale of preferred stock, cash value		$ 3,000
Prepaid Expenses and Other Current Assets [Member]
Total assets	200		200
Series A Preferred Stock [Member]
Sale of preferred stock, cash value	1,041		2,300
Renal Products Segment [Member]
Total assets	$ 1,255		$ 2,500