CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Treasury Stock [Member]	Total
Increase (Decrease) in Stockholders' Equity [Roll Forward]
ASC 606 Cumulative Adjustment | ASC 606 [Member]			$ (1,622)		$ (1,622)
Beginning balance at Jun. 24, 2018	$ 222	$ 33,206	(2,493)	$ (24,636)	6,299
Beginning balance (in shares) at Jun. 24, 2018	22,167,000			(7,119,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock compensation expense	$ 0	101	0	$ 0	101
Issuance of common stock	$ 0	36	0	$ 0	36
Issuance of common stock (in shares)	24,000			0
Net income	$ 0	0	108	$ 0	108
Ending balance at Sep. 23, 2018	$ 222	33,343	(4,007)	$ (24,636)	4,922
Ending balance (in shares) at Sep. 23, 2018	22,191,000			(7,119,000)
Beginning balance at Jun. 24, 2018	$ 222	33,206	(2,493)	$ (24,636)	6,299
Beginning balance (in shares) at Jun. 24, 2018	22,167,000			(7,119,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income					340
Ending balance at Dec. 23, 2018	$ 222	33,520	(3,775)	$ (24,636)	5,331
Ending balance (in shares) at Dec. 23, 2018	22,191,000			(7,119,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
ASC 606 Cumulative Adjustment | ASC 606 [Member]			0		0
Beginning balance at Sep. 23, 2018	$ 222	33,343	(4,007)	$ (24,636)	4,922
Beginning balance (in shares) at Sep. 23, 2018	22,191,000			(7,119,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock compensation expense	$ 0	180	0	$ 0	180
Issuance of common stock	$ 0	0	0	$ 0	0
Issuance of common stock (in shares)	0			0
Equity issue costs - ATM Offering	$ 0	(3)			(3)
Net income	0	0	232	$ 0	232
Ending balance at Dec. 23, 2018	$ 222	33,520	(3,775)	$ (24,636)	5,331
Ending balance (in shares) at Dec. 23, 2018	22,191,000			(7,119,000)
Beginning balance at Jun. 30, 2019	$ 222	33,327	(4,483)	$ (24,632)	$ 4,434
Beginning balance (in shares) at Jun. 30, 2019	22,208,000			(7,117,000)	15,090,837
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Conversion of senior notes, net	$ 0	(31)	0	$ 95	$ 64
Conversion of senior notes, net (in shares)	0			32,000
Equity issue costs - ATM Offering	$ 0	(2)	0	$ 0	(2)
Net income	0	0	237	0	237
Ending balance at Sep. 29, 2019	$ 222	33,294	(4,246)	$ (24,537)	4,733
Ending balance (in shares) at Sep. 29, 2019	22,208,000			(7,085,000)
Beginning balance at Jun. 30, 2019	$ 222	33,327	(4,483)	$ (24,632)	$ 4,434
Beginning balance (in shares) at Jun. 30, 2019	22,208,000			(7,117,000)	15,090,837
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income					$ 251
Ending balance at Dec. 29, 2019	$ 222	33,210	(4,232)	$ (24,537)	$ 4,663
Ending balance (in shares) at Dec. 29, 2019	22,217,000			(7,085,000)	15,132,040
Beginning balance at Sep. 29, 2019	$ 222	33,294	(4,246)	$ (24,537)	$ 4,733
Beginning balance (in shares) at Sep. 29, 2019	22,208,000			(7,085,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock compensation expense	$ 0	(85)	0	$ 0	(85)
Conversion of senior notes, net	$ 0	0	0	$ 0	0
Conversion of senior notes, net (in shares)	0			0
Issuance of common stock	$ 0	0	0	$ 0	0
Issuance of common stock (in shares)	9,000			0
Equity issue costs - ATM Offering	$ 0	1	0	$ 0	1
Net income	0	0	14	0	14
Ending balance at Dec. 29, 2019	$ 222	$ 33,210	$ (4,232)	$ (24,537)	$ 4,663
Ending balance (in shares) at Dec. 29, 2019	22,217,000			(7,085,000)	15,132,040