Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total		Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income	Accumulated Deficit
Beginning Balance, value at Dec. 30, 2017	$ 30,522		$ 126	$ 59,385		$ (28,989)
Beginning Balance, shares at Dec. 30, 2017			11,596,274
Issuance of common stock under stock option plan	62			62
Issuance of common stock under stock option plan, shares			16,250
Employee stock-based compensation expense	843			843
Release of restricted stock, value net of taxes paid	(152)			(152)
Release of restricted stock, shares net of taxes paid			51,314
Other comprehensive income	41				$ 41
Net income	(6,883)					(6,883)
Ending Balance, value at Jun. 30, 2018	24,433		$ 126	60,138	41	(35,872)
Ending Balance, shares at Jun. 30, 2018			11,663,838
Beginning Balance, value at Mar. 31, 2018	27,255		$ 126	59,698	23	(32,592)
Beginning Balance, shares at Mar. 31, 2018			11,637,361
Issuance of common stock under stock option plan	39			39
Issuance of common stock under stock option plan, shares			10,000
Employee stock-based compensation expense	415			415
Release of restricted stock, value net of taxes paid	(14)			(14)
Release of restricted stock, shares net of taxes paid			16,477
Other comprehensive income	18				18
Net income	(3,280)					(3,280)
Ending Balance, value at Jun. 30, 2018	24,433		$ 126	60,138	41	(35,872)
Ending Balance, shares at Jun. 30, 2018			11,663,838
Beginning Balance, value at Dec. 29, 2018	$ 29,961	[1]	$ 145	71,548	70	(41,802)
Beginning Balance, shares at Dec. 29, 2018	13,602,052		13,602,052
Issuance of common stock under stock option plan, shares	210		210
Employee stock-based compensation expense	$ 1,240			1,240
Release of restricted stock, value net of taxes paid	(101)		$ 2	(103)
Release of restricted stock, shares net of taxes paid			144,697
Other comprehensive income	(4)				(4)
Net income	(5,467)					(5,467)
Ending Balance, value at Jun. 29, 2019	$ 25,629		$ 147	72,685	66	(47,269)
Ending Balance, shares at Jun. 29, 2019	13,746,959		13,746,959
Beginning Balance, value at Mar. 30, 2019	$ 27,443		$ 145	72,070	78	(44,850)
Beginning Balance, shares at Mar. 30, 2019			13,633,639
Issuance of common stock under stock option plan, shares			2
Employee stock-based compensation expense	625			625
Release of restricted stock, value net of taxes paid	(8)		$ 2	(10)
Release of restricted stock, shares net of taxes paid			113,318
Other comprehensive income	(12)				(12)
Net income	(2,419)					(2,419)
Ending Balance, value at Jun. 29, 2019	$ 25,629		$ 147	$ 72,685	$ 66	$ (47,269)
Ending Balance, shares at Jun. 29, 2019	13,746,959		13,746,959

[1] Derived from the audited consolidated financial statements included in the Annual Report on Form 10-K filed with the SEC for the year ended December 29, 2018.