Earnings per Share (EPS) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Sep. 29, 2019	Sep. 23, 2018	Jun. 30, 2019
Earnings Per Share [Abstract]
Net income available to common stockholders	$ 237	$ 108
Interest saved on convertible notes of $1,630 at 4%	16	17
Adjusted net income	$ 253	$ 125
BASIC [Abstract]
Weighted average common shares (in shares)	15,106,000	15,064,000
Net income per common share (in dollars per share)	$ 0.02	$ 0.01
DILUTED [Abstract]
Weighted average common shares (in shares)	15,106,000	15,064,000
Convertible notes (in shares)	815,000	833,000
Dilutive stock options (in shares)	3,000	0
Weighted average common shares outstanding (in shares)	15,924,000	15,897,000
Net income per common share (in dollars per share)	$ 0.02	$ 0.01
Convertible notes	$ 1,529		$ 1,584
Convertible Senior Notes [Member]
DILUTED [Abstract]
Convertible notes	$ 1,630
Interest rate	4.00%
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings per Share [Abstract]
Options to purchase shares of common stock excluded from computation of diluted EPS (in shares)	216,550	378,056
Stock Options [Member] | Minimum [Member]
Antidilutive Securities Excluded from Computation of Earnings per Share [Abstract]
Options to purchase shares of common stock exercise price (in dollars per share)	$ 2.71	$ 1.55
Stock Options [Member] | Maximum [Member]
Antidilutive Securities Excluded from Computation of Earnings per Share [Abstract]
Options to purchase shares of common stock exercise price (in dollars per share)	$ 13.11	$ 13.11