Goodwill represents the excess of the cost of an acquired entity over the fair value assigned to the assets purchased and liabilities assumed in connection with a business acquisition. Goodwill is not amortized but is subject, at a minimum, to annual tests for impairment in accordance with accounting guidance for goodwill. The carrying amount of goodwill is evaluated annually, and between annual evaluations if events occur or circumstances change and indicate that the carrying amount of goodwill may be impaired.

Goodwill in the Medical Device reporting unit represents the gross value from the fiscal 2016 acquisitions of Creagh Medical Limited (“Creagh Medical”) and NorMedix. Goodwill in the In Vitro Diagnostics reporting unit represents the gross value from the acquisition of BioFX Laboratories, Inc. (“BioFX”) in fiscal 2007.

Goodwill was not impaired in either reporting unit based on the outcome of the fiscal 2019 annual impairment test which utilized a quantitative assessment. The carrying amount of goodwill was evaluated as of March 31, 2020 with consideration of macroeconomic, industry and Company-specific events and circumstances. As of and for the six months ended March 31, 2020, there have been no events or circumstances that have occurred to indicate it is more likely than not that goodwill was impaired for either of the Company's reporting units.

(Dollars in thousands)	In Vitro Diagnostics		Medical Device		Total
Balance as of September 30, 2019	$	8,010	$	18,161	$	26,171
Currency translation adjustment		—		105		105
Balance as of March 31, 2020	$	8,010	$	18,266	$	26,276