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RESTATEMENT OF PREVIOUSLY ISSUED CONSOLIDATED FINANCIAL STATEMENTS (Details) - USD ($) | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
Revenue | $ 21,988,384 | $ 14,989,951
Cost of sales | 19,504,968 | 13,889,474
Gross profit | 2,483,416 | 1,100,477
Selling, general and administrative expenses | 2,905,686 | 2,094,926
Income (loss) from operations | (422,270) | (994,449)
Interest expense | 510,769 | 447,263
Income (loss) before provision for (benefit from) income taxes | (933,039) | (1,441,712)
Provision for (benefit from) income taxes | 1,677 | 1,195
Net income (loss) | (934,716) | (1,442,907)
Other comprehensive loss net of tax–Change in unrealized loss on interest rate swap |  | (5,800)
Comprehensive income (loss) | $ (934,716) | $ (1,448,707)
Income (loss) per common share - basic (in dollars per share) | $ (0.08) | $ (0.16)
Income (loss) per common share - diluted (in dollars per share) | $ (0.08) | $ (0.16)
Shares used in computing earnings (loss) per common share: |  |
Basic (in shares) | 11,736,305 | 8,888,179
Diluted (in shares) | 11,736,305 | 8,888,179
As Previously Reported [Member] |  |
Revenue | $ 25,583,531 | $ 18,191,623
Cost of sales | 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 (loss) from operations | 2,609,367 | 2,000,028
Interest expense | 510,769 | 447,263
Income (loss) before provision for (benefit from) income taxes | 2,098,598 | 1,552,765
Provision for (benefit from) income taxes | 440,000 | 296,000
Net income (loss) | $ 1,658,598 | 1,256,765
Other comprehensive loss net of tax–Change in unrealized loss on interest rate swap |  | (5,800)
Comprehensive income (loss) |  | $ 1,250,965
Income (loss) per common share - basic (in dollars per share) | $ 0.14 | $ 0.14
Income (loss) per common share - diluted (in dollars per share) | $ 0.14 | $ 0.14
Shares used in computing earnings (loss) per common share: |  |
Basic (in shares) | 11,736,305 | 8,888,179
Diluted (in shares) | 11,792,818 | 8,940,385
Restatement Adjustments [Member] |  |
Net income (loss) | $ (2,593,314) | $ (2,699,672)
Restatement Adjustments [Member] | Revenue Recognition [Member] |  |
Revenue | (3,595,147) | (3,201,672)
Cost of sales | (662,753) | 27,862
Gross profit | (2,932,394) | (3,229,534)
Income (loss) from operations | (2,932,394) | (3,229,534)
Income (loss) before provision for (benefit from) income taxes | (2,932,394) | (3,229,534)
Net income (loss) | (2,932,394) | (3,229,534)
Comprehensive income (loss) |  | (3,229,534)
Restatement Adjustments [Member] | Other [Member] |  |
Cost of sales |  | (280,143)
Gross profit |  | 280,143
Selling, general and administrative expenses | 99,243 | 45,086
Income (loss) from operations | (99,243) | 235,057
Income (loss) before provision for (benefit from) income taxes | (99,243) | 235,057
Net income (loss) | (99,243) | 235,057
Comprehensive income (loss) |  | 235,057
Restatement Adjustments [Member] | Income Taxes [Member] |  |
Provision for (benefit from) income taxes | (438,323) | (294,805)
Net income (loss) | $ 438,323 | 294,805
Comprehensive income (loss) |  | $ 294,805

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