ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Textual) shares in Thousands			3 Months Ended			9 Months Ended	12 Months Ended
	Jul. 29, 2016 GBP (£)	Feb. 25, 2014	Dec. 30, 2017 USD ($)	Dec. 31, 2016 USD ($)	Jul. 02, 2016 USD ($)	Oct. 01, 2016 USD ($)	Dec. 30, 2017 USD ($) shares	Dec. 31, 2016 USD ($) shares	Jan. 02, 2016 USD ($)	Dec. 30, 2017 GBP (£)	Dec. 30, 2017 USD ($)
Accounting Policies [Line Items]
Impairment of property and equipment							$ 0	$ 0	$ 0
Implementation costs deferred during the period							536,000	432,000
Unamortized deferred implementation costs				$ 318,000				318,000			$ 482,000
Internal use software development costs expensed							374,000	467,000
Internal use software development costs capitalized							287,000	436,000
Goodwill impairment						$ 10,800,000	0	10,830,000
Foreign currency translation adjustment				6,782,000				6,782,000			6,668,000
Foreign currency transaction loss							$ 332,000	$ 535,000
Antidilutive securities excluded from computation of loss per share (in shares) | shares							78	43
Accounts receivable transferred under agreement							$ 11,000,000	$ 19,600,000
Loss on sale of receivables							47,000	75,000
Factoring liability				768,000				768,000			4,394,000
Inventory, net				362,000				362,000			180,000
Inventory write-down			$ 200,000	300,000	$ 300,000		$ 181,000	$ 264,000
Investment agreement, inventory required to be sold within one year of agreement to avoid discount (percent)		75.00%
Investment agreement, inventory discount against original purchase price (percent)		10.00%
Maximum [Member]
Accounting Policies [Line Items]
Useful lives of intangible assets							4 years 6 months
Minimum [Member]
Accounting Policies [Line Items]
Useful lives of intangible assets							6 months
Furniture and Fixtures [Member] | Maximum [Member]
Accounting Policies [Line Items]
Estimated useful life of assets							7 years
Furniture and Fixtures [Member] | Minimum [Member]
Accounting Policies [Line Items]
Estimated useful life of assets							3 years
Software And Computer Equipment [Member] | Maximum [Member]
Accounting Policies [Line Items]
Estimated useful life of assets							7 years
Software And Computer Equipment [Member] | Minimum [Member]
Accounting Policies [Line Items]
Estimated useful life of assets							3 years
RTS Financial Service, Inc. [Member]
Accounting Policies [Line Items]
Reserve amount on factored accounts (percent)								20.00%
Receivables factored during the period							$ 7,400,000	$ 3,000,000
Factoring liability				768,000				768,000			1,917,000
Factoring reserve receivable				154,000				154,000			381,000
Fees recorded as interest expense							100,000
RBS Invoice Finance Limited [Member]
Accounting Policies [Line Items]
Receivables factored during the period							$ 26,300,000	$ 0
Factoring liability											2,500,000
Advance amount as percentage of financed receivables (percent)	50.00%
Monthly fixed fee service charge | £	£ 833
Minimum net worth required for compliance | £	£ 7,500,000
Initial term of security agreement	12 months
Prime Rate [Member] | RTS Financial Service, Inc. [Member]
Accounting Policies [Line Items]
Factor fee, basis spread on variable rate (percent)								6.49%
Base Rate [Member] | RBS Invoice Finance Limited [Member]
Accounting Policies [Line Items]
Basis spread on variable rate (percent)	1.75%
Other Current Assets [Member]
Accounting Policies [Line Items]
Unamortized deferred implementation costs				266,000				$ 266,000			176,000
Other Long-term Assets [Member]
Accounting Policies [Line Items]
Unamortized deferred implementation costs				$ 51,000				$ 51,000			$ 306,000
Farncombe Engineering Services Ltd. [Member] | RBS Invoice Finance Limited [Member]
Accounting Policies [Line Items]
Monthly fixed fee service charge | £	£ 250
Agreement Maximum funding for Cartesian Limited [Member] | RBS Invoice Finance Limited [Member]
Accounting Policies [Line Items]
Security agreement, maximum funding level | £										£ 3,000,000
Agreement Maximum Funding for Farncombe Engineering Services Ltd. and Farncombe Technology Limited [Member] | RBS Invoice Finance Limited [Member]
Accounting Policies [Line Items]
Security agreement, maximum funding level | £										1,000,000
Agreement Maximum Funding for All Three Entities [Member] | RBS Invoice Finance Limited [Member]
Accounting Policies [Line Items]
Security agreement, maximum funding level | £										£ 3,000,000