Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 26, 2020	Sep. 28, 2019	Sep. 26, 2020	Sep. 28, 2019
Revenues	$ 31,561	$ 40,250	$ 109,246	$ 142,550
Cost of services	22,741	29,635	81,080	106,615
Gross profit	8,820	10,615	28,166	35,935
Operating costs and expenses
Selling, general and administrative	8,606	9,498	27,837	30,165
Depreciation and amortization of property and equipment	292	304	793	944
Amortization of acquired intangible assets	80	82	240	247
Write-off of receivables and professional fees incurred related to arbitration			8,397
Operating costs and expenses	8,978	9,884	37,267	31,356
Operating (loss) income	(158)	731	(9,101)	4,579
Other expense (income)
Interest expense and other, net	126	390	650	1,276
Imputed interest on contingent consideration	36	(56)	108	40
Loss (gain) on foreign currency transactions	91	(8)	137	(41)
Other expense, net	253	326	895	1,275
(Loss) income before income taxes	(411)	405	(9,996)	3,304
Income tax (benefit) expense	(167)	70	(2,815)	255
Net (loss) income	$ (244)	$ 335	$ (7,181)	$ 3,049
Basic and diluted net (loss) earnings per share (in dollars per share)	$ (0.02)	$ 0.03	$ (0.58)	$ 0.24