CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2018	Jul. 01, 2017
Statement of Financial Position [Abstract]
Trade receivables, allowance for doubtful accounts	$ 0	$ 84
Common stock - par value	$ 0	$ 0
Common stock - shares authorized	25,000,000	25,000,000
Common stock - issued	10,760,000	10,760,000
Common stock - outstanding	10,760,000	10,760,000