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UNAUDITED CONSOLIDATED BALANCE SHEETS [Parenthetical] - USD ($)
Sep. 29, 2019
Dec. 30, 2018
Statement of Financial Position [Abstract]    
Allowance for doubtful accounts receivable, current $ 468,233 $ 468,233
Preferred stock, par value (in USD 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 0 0
Common stock, par value (in USD per share) $ 0.01 $ 0.01
Common stock, shares authorized (in shares) 19,500,000 19,500,000
Common stock, shares issued (in shares) 10,242,114 10,227,247
Common stock, shares outstanding (in shares) 10,242,114 10,227,247
Treasury Stock, Common, Shares   828
Deferred finance costs, line of credit arrangements, net $ 357,528 $ 571,782
Deferred finance costs, current 0 44,920
Deferred finance costs, noncurrent $ 0 $ 65,850
Treasury stock (in shares) 828 828