Quarterly report pursuant to Section 13 or 15(d)

Business Segment Information - Summary of Segment Information (Details)

v3.19.1
Business Segment Information - Summary of Segment Information (Details) - USD ($)
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Segment Reporting Information [Line Items]    
Total revenue $ 47,480,256 $ 34,438,696
Total operating expenses 44,565,215 30,987,148
Total operating income 2,915,041 3,451,548
Total other expenses, net (308,156) (167,734)
Income before income taxes 2,606,885 3,283,814
Capital Expenditures 12,366,181 3,374,256
Depreciation and amortization 2,581,079 1,887,508
Operating Segments | Electrical construction    
Segment Reporting Information [Line Items]    
Total revenue 41,387,318 34,131,919
Total operating expenses 38,353,612 29,087,925
Total operating income 3,033,706 5,043,994
Total other expenses, net (324,313) (163,371)
Income before income taxes 2,709,393 4,880,623
Capital Expenditures 11,642,297 3,365,643
Depreciation and amortization 2,552,235 1,858,465
Operating Segments | Real estate development    
Segment Reporting Information [Line Items]    
Total revenue 6,092,938 306,777
Total operating expenses 4,888,792 431,035
Total operating income 1,204,146 (124,258)
Total other expenses, net (4,852) (19,087)
Income before income taxes 1,199,294 (143,345)
Capital Expenditures   3,076
Depreciation and amortization 5,674 4,348
Corporate    
Segment Reporting Information [Line Items]    
Total operating expenses 1,322,811 1,468,188
Total operating income (1,322,811) (1,468,188)
Total other expenses, net 21,009 14,724
Income before income taxes (1,301,802) (1,453,464)
Capital Expenditures 723,884 5,537
Depreciation and amortization $ 23,170 $ 24,695