Balance Sheets (Parenthetical) - $ / shares	Mar. 30, 2019	Dec. 29, 2018
Statement of Financial Position [Abstract]
Common stock, authorized shares	20,000,000	20,000,000
Common stock, issued shares	13,427,492	13,425,992
Common stock, outstanding shares	13,207,436	13,205,936
Common stock, par value	$ .01	$ .01