Condensed Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Apr. 01, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Allowance for doubtful accounts and sales promotions on accounts receivables	$ 341	$ 370
Accumulated depreciation on fixed assets	$ 15	$ 14
Preferred stock, par value	$ .01	$ .01
Preferred stock, shares authorized	100,000	100,000
Preferred stock, shares issued
Common stock, par value	$ .01	$ .01
Common stock, shares authorized	15,000,000	15,000,000
Common stock, shares issued	5,153,706	5,153,706
Common stock, shares outstanding	5,153,706	5,153,706