5. Trade and other receivables (Details) - USD ($) $ in Thousands	Mar. 30, 2019	Dec. 29, 2018
Receivables [Abstract]
Trade receivables, net	$ 4,056	$ 5,064
Factored accounts receivable	(858)	(582)
Prestige Capital reserve receivable	164	106
Due from Recleim	819	819
Other receivables	431	397
Trade and other receivables, net	4,612	5,804
Trade accounts receivable	2,986	3,350
Un-billed trade receivables	1,099	1,743
A/R Reserve	(29)	(29)
Total Trade receivables, net	$ 4,056	$ 5,064