Earnings per Share (EPS) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 26, 2023	Mar. 27, 2022	Mar. 26, 2023	Mar. 27, 2022
Earnings Per Share [Abstract]
Net income available to common stockholders	$ 323	$ 493	$ 978	$ 1,235
BASIC [Abstract]
Weighted average common shares (in shares)	14,154,000	18,005,000	15,712,000	18,005,000
Net income per common share (in dollars per share)	$ 0.02	$ 0.03	$ 0.06	$ 0.07
DILUTED [Abstract]
Weighted average common shares (in shares)	14,154,000	18,005,000	15,712,000	18,005,000
Convertible notes (in shares)	0	447,000	0	681,000
Dilutive stock options (in shares)	0	0	0	0
Weighted average common shares outstanding (in shares)	14,154,000	18,452,000	15,712,000	18,686,000
Net income per common share (in dollars per share)	$ 0.02	$ 0.03	$ 0.06	$ 0.07
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings per Share [Abstract]
Exercisable options to purchase shares of common stock excluded from computation of diluted EPS (in shares)	111,750	166,750	111,750	166,750
Intrinsic value of options outstanding	$ 0	$ 0	$ 0	$ 0
Stock Options [Member] | Minimum [Member]
Antidilutive Securities Excluded from Computation of Earnings per Share [Abstract]
Exercisable options to purchase shares of common stock exercise price (in dollars per share)	$ 3.95	$ 3.11	$ 3.95	$ 3.11
Stock Options [Member] | Maximum [Member]
Antidilutive Securities Excluded from Computation of Earnings per Share [Abstract]
Exercisable options to purchase shares of common stock exercise price (in dollars per share)	$ 13.11	$ 13.11	$ 13.11	$ 13.11