Business Segment, Business Credit Risks and Concentration (Tables)

12 Months Ended

Dec. 31, 2019

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

The following table sets forth certain segment information as of December 31 for the years indicated:

	2019			2018
Continuing Operations
Revenue
Electrical construction		167,779,823			136,526,511
Real estate development		12,865,895			1,622,331
Total revenue	$	180,645,718		$	138,148,842
Operating expenses
Electrical construction		152,660,559			123,914,953
Real estate development		11,106,477			1,924,835
Corporate		5,663,131			4,745,350
Total operating expenses	$	169,430,167		$	130,585,138
Operating income (loss)
Electrical construction		15,119,264			12,611,558
Real estate development		1,759,418			(302,504	)
Corporate		(5,663,131	)		(4,745,350	)
Total operating income	$	11,215,551		$	7,563,704
Other (expenses) income, net
Electrical construction		(1,362,917	)		(761,117	)
Real estate development		(5,498	)		(56,010	)
Corporate		142,844			78,120
Total other expenses, net	$	(1,225,571	)	$	(739,007	)
Net income (loss) before taxes
Electrical construction		13,756,347			11,850,441
Real estate development		1,753,920			(358,514	)
Corporate		(5,520,287	)		(4,667,230	)
Total net income before taxes	$	9,989,980		$	6,824,697
Capital Expenditures
Electrical construction		18,799,010			19,514,124
Real estate development		116,497			42,545
Corporate		938,961			52,576
Total	$	19,854,468		$	19,609,245
Depreciation and Amortization
Electrical construction		10,718,202			8,319,362
Real estate development		26,950			21,279
Corporate		101,182			96,331
Total	$	10,846,334		$	8,436,972

Summary of Assets by Segment

The following table sets forth assets by segment as of the dates indicated:

Assets	December 31, 2019		December 31, 2018
Electrical construction		111,064,071		93,625,017
Real estate development		7,578,440		14,557,323
Corporate		10,724,667		4,366,135
Total	$	129,367,178	$	112,548,475

Schedule of Concentration Risk

Revenue to customers exceeding 10% of the Company’s total revenue for the years ended December 31 as indicated are as follows:

	2019					2018
	Amount		% of Total revenue			Amount		% of Total revenue
Electrical construction operations
Customer A	$	48,771,790		27.0	%	$	39,866,379		28.9	%
Customer B		26,276,755		14.5	%		22,085,201		16.0	%
Customer C		22,765,933		12.6	%		—		—	%
Customer D		—		—	%		16,971,598		12.3	%
Total				54.1	%				57.2	%

Revenue by service/product for the years ended December 31 as indicated are as follows:

	2019					2018
	Amount		% of Total revenue			Amount		% of Total revenue
Electrical construction
Principal electrical construction operations (1)	$	165,283,100		92	%	$	129,021,508		93	%
Other electrical construction (2)		2,496,723		1	%		7,505,003		6	%
Total		167,779,823		93	%		136,526,511		99	%
Real estate development		12,865,895		7	%		1,622,331		1	%
Total revenue	$	180,645,718		100.00	%	$	138,148,842		100.00	%
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(1) Principal electrical construction operations include revenue from transmission lines, distribution systems, substations and drilled pier foundations.
(2) Other electrical construction includes revenue from storm work, fiber optics and other miscellaneous electrical construction items as disclosed in the revenue disaggregation reported in note 14.