The changes in the carrying amount of goodwill by reporting unit for the fiscal years ended December 31, 2022 and 2021 were as follows:


	Detergent			Shampoo			All-Purpose			Total
Balance, January 1, 2022	$	-		$	-		$	1,710		$	1,710
Additions		-			-			-			-
Impairment		-			-			(1,710	)		(1,710	)
Balance, December 31, 2022	$	-		$	-		$	-		$	-

Balance, January 1, 2021	$	593		$	760		$	1,710		$	3,063
Additions		-			-			-			-
Impairment		(593	)		(760	)		-			(1,353	)
Balance, December 31, 2021	$	-		$	-		$	1,710		$	1,710

Intangible assets consisted of the following:


	As of December 31, 2022						As of December 31, 2021
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Value		Gross Carrying Amount		Accumulated Amortization		Net Carrying Value
Intangible assets:
Customer relationships	$	-	$	-	$	-	$	2,103	$	329	$	1,774
Trade names		309		97		212		1,680		151		1,529
Formulas and batching processes		412		283		129		1,036		299		737
Internal-use software		898		105		793		756		-		756
Non-compete agreement		33		30		3		48		35		13
	$	1,652	$	515	$	1,137	$	5,623	$	814	$	4,809

The change in the net carrying amounts of intangible assets during 2022 was primarily due to cash paid for our internal-use software, the impact of impairment charges related to intangible assets in our reporting units more fully described below, and amortization expense. Amortization expense for the years ended December 31, 2022 and 2021 was $325 and $802, respectively.

During the second quarter of 2022, we experienced a significant decline in our stock price and market capitalization and revised internal forecasts relating to all reporting units due to inflationary related pressures at our customers which have caused sales decreases, which resulted in impairment charges to goodwill and certain intangible assets in our All-Purpose reporting unit. We made revisions to the internal forecasts relating to all reporting units during the fourth quarter of 2022 and 2021 due primarily to the sale of our Prell® and Dryel® brands as well as the impact of rising costs associated with the manufacture and distribution of our products. Through our annual assessments conducted on December 31, 2022 and 2021, respectively, we concluded that the changes in circumstances in these reporting units triggered the need for a quantitative review of the carrying values of goodwill and certain intangible assets and resulted in impairment charges to each of our Detergent, All-Purpose, and Shampoo reporting units. During the year ended December 31, 2022 and 2021, respectively, we incurred the impairment charges to the following reporting units:


	2022						2021
	Intangible Assets		Goodwill		Total		Intangible Assets		Goodwill		Total
All-Purpose	$	2,717	$	1,710	$	4,427	$	1,084	$	593	$	1,677
Shampoo		194		-		194		1,483		760		2,243
Detergent		551		-		551		130		-		130
	$	3,462	$	1,710	$	5,172	$	2,697	$	1,353	$	4,050

The Company used the income approach and market approach to determine the fair value of the reporting units that required significant judgments and estimates by management regarding several key inputs, including future cash flows consistent with management’s strategic plans, sales growth rates and the selection of royalty rate and a discount rate, among others. Estimating sales growth rates requires significant judgment by management in areas such as future economic conditions, category and industry growth rates, product pricing, consumer tastes and preferences and future expansion expectations.