Accounts Receivable (Tables)

12 Months Ended

Dec. 31, 2019

Receivables [Abstract]

Summary of Accounts Receivable

Accounts receivable as of December 31, 2019 and December 31, 2018 consist of the following (in thousands):

	December 31, 2019		December 31, 2018
Billed receivables	$	1,718	$	1,633
Less allowance for doubtful accounts	(87)		(145)
Accounts receivable – net	$	1,631	$	1,488

Summary of Allowance for Doubtful Accounts Activity

The following table summarizes the allowance for doubtful accounts activity as of and for the years ended December 31, 2019 and December 31, 2018 (in thousands).

	Balance at Beginning of Period		Additions Charged to Expense		Charged to Other Accounts		Write-offs		Balance at End of Period
Allowance for doubtful accounts:
Year Ended December 31, 2019	$	(145)	$	(56)	$	(24)	$	138	$	(87)
Year Ended December 31, 2018	$	(163)	$	(143)	$	5	$	156	$	(145)