Detail of Certain Balance Sheet Accounts

12 Months Ended

Dec. 26, 2020

Balance Sheet Related Disclosures [Abstract]

Detail of Certain Balance Sheet Accounts

The components of trade receivables, net as of December 26, 2020 and December 28, 2019, are as follows (amounts in thousands):

	2020			2019
Amounts billed	$	5,050		$	5,523
Amounts unbilled		1,455			5,576
Retainage		1,670			572
Less: Allowance for uncollectible accounts		(386	)		(236	)
Trade receivables, net	$	7,789		$	11,435

The components of prepaid expense and other current assets are as follows as of December 26, 2020 and December 28, 2019 (amounts in thousands):

	2020		2019
Prepaid expenses	$	843	$	816
Other receivables - employee		48		54
Note receivable		—		19
Prepaid expenses and other current assets	$	891	$	889

The components of other current liabilities are as follows as of December 26, 2020 and December 28, 2019 (amounts in thousands):

	2020		2019
Accrual for known contingencies	$	215	$	145
Customer prepayments		4		1
Gross receipts tax payable		23		96
State income taxes payable		83		67
Insurance payable		420		372
Other current liabilities	$	745	$	681

Our accrual for known contingencies includes litigation accruals, if any. See “Note 15 – Commitments and Contingencies” for further information.