CONSOLIDATED BALANCE SHEETS - Parenthetical - USD ($)	Dec. 27, 2020	Dec. 29, 2019
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 492,087	$ 468,233
Long-term debt, current portion - Deferred finance fees	0	0
Line of credit - Deferred finance fees	268,076	351,128
Long-term debt, less current portion - Deferred finance fees	$ 0	$ 0
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	500,000	500,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	19,500,000	19,500,000
Common stock, shares issued (in shares)	10,328,379	10,309,236
Common stock, shares outstanding (in shares)	10,328,379	10,309,236
Treasury stock, shares (in shares)	1,004	0