4. Balance Sheet Components

Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consisted of the following as of December 31, 2020 and 2019:


	December 31,
	2020		2019
Credit card processing reserve	$	5,854	$	2,650
Prepaid expenses		3,772		2,460
Other current assets		865		4,354
Prepaid expenses and other current assets	$	10,491	$	9,464

The Company recorded an impairment charge of $3.4 million related to prepaid expenses and other current assets for the year ended December 31, 2020, in connection with a lease agreement for corporate facilities.

Property and Equipment, Net

Property and equipment consisted of the following as of December 31, 2020 and 2019:


	December 31,
	2020		2019
Capitalized internal-use software	$	6,167	$	3,554
Computer equipment and servers		631		458
Furniture and fixtures		184		238
Leasehold improvements		114		143
Construction in progress		1,037		519
Total property and equipment		8,133		4,912
Accumulated depreciation and amortization		(2,841)		(1,264)
Property and equipment, net	$	5,292	$	3,648

Depreciation and amortization expense related to property and equipment was $1.6 million, $0.7 million, and $0.4 million in 2020, 2019, and 2018, respectively.

Other Current Liabilities

Other current liabilities consisted of the following as of December 31, 2020 and 2019:


	December 31,
	2020		2019
Accrued sales and marketing expenses	$	7,204	$	1,630
Accrued compensation		3,825		2,531
End-user liability, net		2,789		1,418
Accrued developer revenue share		907		540
Other accrued expenses		4,893		1,418
Other current liabilities	$	19,618	$	7,537