Earnings per Share (EPS) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 27, 2022	Mar. 28, 2021	Mar. 27, 2022	Mar. 28, 2021
Earnings Per Share [Abstract]
Net income available to common shareholders	$ 493	$ 416	$ 1,235	$ 594
BASIC [Abstract]
Weighted average common shares (in shares)	18,005,000	17,991,000	18,005,000	17,061,000
Net income per common share (in dollars per share)	$ 0.03	$ 0.02	$ 0.07	$ 0.03
DILUTED [Abstract]
Weighted average common shares (in shares)	18,005,000	17,991,000	18,005,000	17,061,000
Convertible notes (in shares)	447,000	798,000	681,000	798,000
Dilutive stock options (in shares)	0	0	0	0
Weighted average common shares outstanding (in shares)	18,452,000	18,789,000	18,686,000	17,859,000
Net income per common share (in dollars per share)	$ 0.03	$ 0.02	$ 0.07	$ 0.03
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)	166,750	206,750	166,750	206,750
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)	$ 3.11	$ 2.71	$ 3.11	$ 2.71
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	$ 13.11	$ 13.11