CONSOLIDATED CONDENSED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 21, 2020	Dec. 28, 2019	Mar. 23, 2019
CONSOLIDATED CONDENSED BALANCE SHEETS
Receivables allowance (in dollars)	$ 565	$ 483	$ 548
Preferred stock, shares authorized	1,000,000	1,000,000	1,000,000
Preferred stock, shares issued	0	0	0
Preferred Stock, Par Value	$ 0	$ 0	$ 0
Common stock, Par value	$ 0	$ 0	$ 0
Common stock, shares authorized	30,000,000	30,000,000	30,000,000
Common stock, shares issued	14,096,874	14,214,777	14,471,496
Common stock, shares outstanding	14,096,874	14,214,777	14,471,496