Fair value of Financial Instruments (Tables)

9 Months Ended

Sep. 26, 2020

Fair Value Disclosures [Abstract]

Schedule of financial instruments that are measured and recorded at fair value on a recurring basis

The following tables show CRA’s financial instruments as of September 26, 2020 and December 28, 2019 that are measured and recorded in the condensed consolidated financial statements at fair value on a recurring basis (in thousands):

​	September 26, 2020
​	Quoted Prices in Active Markets for Identical Assets or Liabilities		Significant Other Observable Inputs		Significant Unobservable Inputs
​	Level 1		Level 2		Level 3
Assets:
Money market mutual funds	$	150	$	—	$	—
Total Assets	$	150	$	—	$	—
Liabilities:
Contingent consideration liability	$	—	$	—	$	13,480
Total Liabilities	$	—	$	—	$	13,480

​	December 28, 2019
​	Quoted Prices in Active Markets for Identical Assets or Liabilities		Significant Other Observable Inputs		Significant Unobservable Inputs
​	Level 1		Level 2		Level 3
Assets:
Money market mutual funds	$	150	$	—	$	—
Total Assets	$	150	$	—	$	—
Liabilities:
Contingent consideration liability	$	—	$	—	$	11,579
Total Liabilities	$	—	$	—	$	11,579

Summary of the changes in the contingent consideration liability

The following table summarizes the changes in the contingent consideration liabilities (in thousands):

​	Fiscal Year-to-Date Period Ended		Fiscal Year Ended
​	September 26, 2020		December 28, 2019
Beginning balance	$	11,579	$	6,197
Remeasurement of acquisition-related contingent consideration	921		3,285
Accretion	980		2,097
Ending balance	$	13,480	$	11,579