Condensed Consolidated Statements of Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss
Balance in shares at Jun. 29, 2018		5,351,155
Balance at Jun. 29, 2018	$ 57,516	$ 54	$ 816,426	$ (746,359)	$ (12,605)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	5,899			5,899
Other comprehensive income (loss) net of tax	(426)				(426)
Issuance of common stock under employee stock plans (in shares)		182,421
Issuance of common stock under employee stock plans	30	$ 1	29
Shares withheld for taxes related to vesting of equity awards (in shares)		(35,088)
Shares withheld for taxes related to vesting of equity awards	(561)		(561)
Stock repurchase (in shares)		(122,546)
Stock repurchase	(1,870)	$ (1)	(1,869)
Share-based compensation	1,396		1,396
Balance in shares at Mar. 29, 2019		5,375,942
Balance at Mar. 29, 2019	67,607	$ 54	815,421	(734,837)	(13,031)
Balance in shares at Dec. 28, 2018		5,399,357
Balance at Dec. 28, 2018	63,327	$ 54	815,392	(739,176)	(12,943)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	4,339			4,339
Other comprehensive income (loss) net of tax	(88)				(88)
Issuance of common stock under employee stock plans (in shares)		8,168
Issuance of common stock under employee stock plans	11		11
Shares withheld for taxes related to vesting of equity awards (in shares)		(622)
Shares withheld for taxes related to vesting of equity awards	(7)		(7)
Stock repurchase (in shares)		(30,961)
Stock repurchase	(433)		(433)
Share-based compensation	458		458
Balance in shares at Mar. 29, 2019		5,375,942
Balance at Mar. 29, 2019	$ 67,607	$ 54	815,421	(734,837)	(13,031)
Balance in shares at Jun. 28, 2019	5,359,695	5,359,695
Balance at Jun. 28, 2019	$ 71,516	$ 54	815,196	(730,998)	(12,736)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(886)			(886)
Other comprehensive income (loss) net of tax	(2,477)				(2,477)
Issuance of common stock under employee stock plans (in shares)		215,423
Issuance of common stock under employee stock plans	11	$ 2	9
Shares withheld for taxes related to vesting of equity awards (in shares)		(54,065)
Shares withheld for taxes related to vesting of equity awards	(764)	$ (1)	(763)
Stock repurchase (in shares)		(128,023)
Stock repurchase	(1,772)	$ (1)	(1,771)
Share-based compensation	$ 1,315		1,315
Balance in shares at Apr. 03, 2020	5,393,030	5,393,030
Balance at Apr. 03, 2020	$ 66,943	$ 54	813,986	(731,884)	(15,213)
Balance in shares at Dec. 27, 2019		5,414,480
Balance at Dec. 27, 2019	68,467	$ 54	813,867	(732,615)	(12,839)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	731			731
Other comprehensive income (loss) net of tax	(2,374)				(2,374)
Issuance of common stock under employee stock plans (in shares)		6,715
Issuance of common stock under employee stock plans	1		1
Shares withheld for taxes related to vesting of equity awards (in shares)		(1,681)
Shares withheld for taxes related to vesting of equity awards	(18)		(18)
Stock repurchase (in shares)		(26,484)
Stock repurchase	(371)		(371)
Share-based compensation	$ 507		507
Balance in shares at Apr. 03, 2020	5,393,030	5,393,030
Balance at Apr. 03, 2020	$ 66,943	$ 54	$ 813,986	$ (731,884)	$ (15,213)