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CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Income Statement [Abstract]
Revenue	$ 25,583,531	$ 18,191,623
Cost of revenue	20,167,721	14,141,755
Gross profit	5,415,810	4,049,868
Selling, general and administrative expenses	2,806,443	2,049,840
Income from operations	2,609,367	2,000,028
Interest expense	510,769	447,263
Income before provision for income taxes	2,098,598	1,552,765
Provision for income taxes	440,000	296,000
Net income	1,658,598	1,256,765
Other comprehensive loss net of tax- Change in unrealized loss on interest rate swap		(5,800)
Comprehensive income	$ 1,658,598	$ 1,250,965
Income per common share-basic (in dollars per share)	$ 0.14	$ 0.14
Income per common share-diluted (in dollars per share)	$ 0.14	$ 0.14
Shares used in computing income per common share:
Basic (in shares)	11,736,305	8,888,179
Diluted (in shares)	11,792,818	8,940,385

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