Consolidated Statements of Shareholders’ Equity - USD ($) $ in Thousands	Common shares	Capital in excess of par	Retained earnings	Treasury shares	Total
Balance at Dec. 29, 2018	$ 643	$ 1,930	$ 61,131	$ (14,928)	$ 48,776
Balance (in shares) at Dec. 29, 2018	2,574,264			876,409
Consolidated Statements of Shareholders' Equity
Net income (loss)			13,322		13,322
Compensation of Board of Directors by issuance of treasury shares		83		$ 358	441
Compensation of Board of Directors by issuance of treasury shares (in shares)				(21,000)
Purchase of treasury shares				$ (69)	(69)
Purchase of treasury shares (in shares)				3,368
Balance at Mar. 30, 2019	$ 643	2,013	74,453	$ (14,639)	62,470
Balance (in shares) at Mar. 30, 2019	2,574,264			858,777
Balance at Dec. 28, 2019	$ 643	1,853	47,232	$ (14,539)	35,189
Balance (in shares) at Dec. 28, 2019	2,574,264			860,910
Consolidated Statements of Shareholders' Equity
Net income (loss)			704		704
Purchase of treasury shares				$ (280)	(280)
Purchase of treasury shares (in shares)				37,870
Balance at Mar. 28, 2020	$ 643	$ 1,853	$ 47,936	$ (14,819)	$ 35,613
Balance (in shares) at Mar. 28, 2020	2,574,264			898,780