CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Revenue	$ 87,584,690	$ 87,518,688
Cost of sales	75,490,503	78,386,997
Gross profit	12,094,187	9,131,691
Selling, general and administrative expenses	12,046,170	11,562,781
Profit/(Loss) from operations	48,017	(2,431,090)
Other expense:
Other income		89,666
Interest expense	(1,421,955)	(2,104,851)
Total other expense, net	(1,421,955)	(2,015,185)
Loss before provision for income taxes	(1,373,938)	(4,446,275)
Provision for/ (benefit from) income taxes	(53,500)	3,877
Net loss	$ (1,320,438)	$ (4,450,152)
Loss per common share-basic	$ (0.11)	$ (0.38)
Loss per common share-diluted	$ (0.11)	$ (0.38)
Shares used in computing loss per common share:
Basic	11,884,307	11,808,052
Diluted	11,884,307	11,808,052