SEGMENTS (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended		12 Months Ended
	Sep. 26, 2020	Mar. 28, 2020	Sep. 28, 2019	Sep. 26, 2020	Sep. 28, 2019	Dec. 28, 2019
Revenues From External Customers And Long Lived Assets [Line Items]
Total Revenue	$ 48,640		$ 67,320	$ 150,693	$ 214,644
Total Gross Profit	8,323		12,485	26,525	36,695
Selling, general and administrative expenses	(9,391)		(11,361)	(28,609)	(32,552)
Depreciation and amortization	(768)		(867)	(2,312)	(2,621)
Impairment of goodwill	0	$ (2,969)	0	(2,969)	0	$ 0
Interest expense and amortization of debt discount and deferred financing costs	(1,746)		(2,059)	(6,277)	(5,977)
Re-measurement gain (loss) on intercompany note	442		(467)	(348)	(484)
Gain on business sale	220		0	220	0
Gain on settlement of deferred consideration	0		1,138	0	1,985
Other income	161		51	122	308
Loss Before Provision for Income Tax	(2,759)		(1,080)	(13,648)	(2,646)
Total Assets	85,301			85,301		88,841
UNITED STATES [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Total Assets	73,189			73,189		74,671
UNITED STATES [Member] | Commercial Staffing [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Total Revenue	28,708		31,644	79,992	94,280
Total Gross Profit	4,642		5,107	12,552	14,823
UNITED STATES [Member] | Professional Staffing [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Total Revenue	5,188		9,387	19,778	28,449
Total Gross Profit	1,664		3,701	6,598	10,904
UNITED KINGDOM [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Total Assets	12,112			12,112		$ 14,170
UNITED KINGDOM [Member] | Professional Staffing [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Total Revenue	14,744		26,289	50,923	91,915
Total Gross Profit	$ 2,017		$ 3,677	$ 7,375	$ 10,968