ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - GOING CONCERN (Details)		12 Months Ended
	Mar. 21, 2018 USD ($)	Dec. 30, 2017 USD ($) day $ / shares shares	Dec. 31, 2016 USD ($) $ / shares	Jan. 02, 2016 USD ($)	Mar. 18, 2014 USD ($)
Business Acquisition [Line Items]
Net cash (used in) operating activities		$ (4,492,000)	$ (2,355,000)
Cash and cash equivalents		843,000	$ 4,131,000	$ 6,879,000
Net working capital		$ (44,000)
Aggregate original principal amount					$ 3,268,664
Number of trading days Included to determine stock repurchase price | day		15
Elutions, Inc [Member] | Tracking Warrant [Member]
Business Acquisition [Line Items]
Warrants issued to purchase common stock (in shares) | shares		996,544
Warrants issued during period, exercise price (in dollars per share) | $ / shares		$ 3.28
Elutions, Inc [Member] | Tracking Warrant [Member] | Strategic Alliance and Investment [Member]
Business Acquisition [Line Items]
Warrants issued to purchase common stock (in shares) | shares		996,544
Warrants issued during period, exercise price (in dollars per share) | $ / shares		$ 3.28	$ 3.28
Subsequent Event [Member]
Business Acquisition [Line Items]
Termination fee paid by Company if merger is terminated in specified circumstances	$ 400,000
Elutions Note [Member]
Business Acquisition [Line Items]
Aggregate original principal amount		$ 3,300,000
Payment period for Elutions Note after call by holder for redemption		30 days
Working Capital Note [Member] | Subsequent Event [Member]
Business Acquisition [Line Items]
Aggregate original principal amount	$ 1,000,000
Stated interest rate (percent)	10.00%