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Amount of liability recognized arising from contingent consideration in a business combination, expected to be settled within one year or the normal operating cycle, if longer.

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-Publisher FASB
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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Fair value of contingent consideration in a business combination that is classified in shareholders' equity.

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- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Nature of Business and Significant Accounting Policies, Property, Plant and Equipment, Contingent Consideration and Revenue Recognition (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Aug. 31, 2016
Property, Plant and Equipment [Abstract]
Depreciation expense	$ 239	$ 232
Impairment losses recognized	$ 0	$ 0
Production Equipment [Member] \| Minimum [Member]
Property, Plant and Equipment [Abstract]
Estimated useful lives	3 years
Production Equipment [Member] \| Maximum [Member]
Property, Plant and Equipment [Abstract]
Estimated useful lives	7 years
Office Furniture & Fixtures [Member] \| Minimum [Member]
Property, Plant and Equipment [Abstract]
Estimated useful lives	3 years
Office Furniture & Fixtures [Member] \| Maximum [Member]
Property, Plant and Equipment [Abstract]
Estimated useful lives	5 years
Computer Software and Equipment [Member] \| Minimum [Member]
Property, Plant and Equipment [Abstract]
Estimated useful lives	3 years
Computer Software and Equipment [Member] \| Maximum [Member]
Property, Plant and Equipment [Abstract]
Estimated useful lives	4 years
Loaners and Demo Equipment [Member] \| Minimum [Member]
Property, Plant and Equipment [Abstract]
Estimated useful lives	3 years
Loaners and Demo Equipment [Member] \| Maximum [Member]
Property, Plant and Equipment [Abstract]
Estimated useful lives	7 years
Leasehold Improvements [Member] \| Minimum [Member]
Property, Plant and Equipment [Abstract]
Estimated useful lives	3 years
Leasehold Improvements [Member] \| Maximum [Member]
Property, Plant and Equipment [Abstract]
Estimated useful lives	5 years
Aquadex Product Line [Member]
Contingent Consideration [Abstract]
Contingent consideration	$ 0		$ 126
Fair value of contingent consideration	$ 0		$ 126
ASC 606 [Member] \| Customer One [Member] \| Net Sales [Member]
Revenue, Performance Obligation [Abstract]
Concentration risk percentage	10.00%	10.00%