UNAUDITED CONSOLIDATED BALANCE SHEETS [Parenthetical] - USD ($)	Jul. 01, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Allowance for doubtful accounts receivable, current	$ 473,573	$ 473,573
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)	10,089,029	8,759,376
Common stock, shares outstanding (in shares)	10,089,029	8,759,376
Deferred finance costs, line of credit arrangements, net	$ 659,749	$ 747,716
Deferred finance costs, current	67,391	138,801
Deferred finance costs, noncurrent	$ 214,534	$ 246,030