CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Treasury Stock [Member]	Total
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)
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)
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)
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)
Issuance of common stock	$ 0	0	0	0	0
Issuance of common stock (in shares)	9,000
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)
Beginning balance at Jun. 28, 2020	$ 225	33,531	(8,716)	$ (24,537)	$ 503
Beginning balance (in shares) at Jun. 28, 2020	22,550,000			(7,085,000)	15,465,222
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity issue costs - ATM Offering	$ 0	(3)	0	$ 0	$ (3)
Net income	0	0	76	0	76
Ending balance at Sep. 27, 2020	$ 225	33,528	(8,640)	$ (24,537)	576
Ending balance (in shares) at Sep. 27, 2020	22,550,000			(7,085,000)
Beginning balance at Jun. 28, 2020	$ 225	33,531	(8,716)	$ (24,537)	$ 503
Beginning balance (in shares) at Jun. 28, 2020	22,550,000			(7,085,000)	15,465,222
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income					$ 178
Ending balance at Dec. 27, 2020	$ 251	37,136	(8,538)	$ (24,537)	$ 4,312
Ending balance (in shares) at Dec. 27, 2020	25,090,000			(7,085,000)	18,004,904
Beginning balance at Sep. 27, 2020	$ 225	33,528	(8,640)	$ (24,537)	$ 576
Beginning balance (in shares) at Sep. 27, 2020	22,550,000			(7,085,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock	$ 26	3,735	0	$ 0	3,761
Issuance of common stock (in shares)	2,540,000
Equity issue costs - ATM Offering	$ 0	(127)	0	0	(127)
Net income	0	0	102	0	102
Ending balance at Dec. 27, 2020	$ 251	$ 37,136	$ (8,538)	$ (24,537)	$ 4,312
Ending balance (in shares) at Dec. 27, 2020	25,090,000			(7,085,000)	18,004,904