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Unaudited Condensed Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands | GCI Acquisition [Member] Common Stock [Member] | GCI Acquisition [Member] Additional Paid-in Capital [Member] | GCI Acquisition [Member] | Sexton Acquisition [Member] Common Stock [Member] | Sexton Acquisition [Member] Additional Paid-in Capital [Member] | Sexton Acquisition [Member] | Preferred Stock [Member] Series A Preferred Stock [Member] | Common Stock [Member] | Additional Paid-in Capital [Member] | AOCI Attributable to Parent [Member] | Retained Earnings [Member] | Total
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Balance (in shares) at Dec. 31, 2019 |  |  |  |  |  |  | 0 | 20,825,452 |  |  |  |
Balance at Dec. 31, 2019 |  |  |  |  |  |  | $ 0 | $ 21 | $ 143,485 |  | $ (100,052) | $ 43,454
Stock based compensation |  |  |  |  |  |  |  |  | 3,818 |  |  | 3,818
Stock option exercises (in shares) |  |  |  |  |  |  |  | 528,793 |  |  |  |
Stock option exercises |  |  |  |  |  |  |  |  | 1,028 |  |  | 1,028
Cashless exercises of warrants (in shares) |  |  |  |  |  |  |  | 2,747,970 |  |  |  |
Cashless exercises of warrants |  |  |  |  |  |  |  | $ 3 | 33,108 |  |  | 33,111
Stock issued – on vested RSAs (in shares) |  |  |  |  |  |  | 0 | 161,263 |  |  |  |
Net income (loss) |  |  |  |  |  |  |  |  |  |  | 4,795 | 4,795
Stock issued as 2019 bonus payout |  |  |  |  |  |  |  |  | 314 |  |  | 314
Sale of common stock, net of fees (in shares) |  |  |  |  |  |  |  | 7,856,012 |  |  |  |
Sale of common stock, net of fees |  |  |  |  |  |  |  | $ 8 | 100,113 |  |  | 100,121
Common stock issued for services (in shares) |  |  |  |  |  |  |  | 3,175 |  |  |  |
Common stock issued for services |  |  |  |  |  |  |  |  | 60 |  |  | 60
Warrant exercises (in shares) |  |  |  |  |  |  |  | 8,500 |  |  |  |
Warrant exercises |  |  |  |  |  |  |  |  | 150 |  |  | 150
Balance (in shares) at Sep. 30, 2020 |  |  |  |  |  |  |  | 32,131,165 |  |  |  |
Balance at Sep. 30, 2020 |  |  |  |  |  |  |  | $ 32 | 282,076 | $ 0 | (95,257) | 186,851
Balance (in shares) at Jun. 30, 2020 |  |  |  |  |  |  |  | 25,982,367 |  |  |  |
Balance at Jun. 30, 2020 |  |  |  |  |  |  |  | $ 26 | 199,941 |  | (94,124) | 105,843
Stock based compensation |  |  |  |  |  |  |  |  | 1,560 |  |  | 1,560
Stock option exercises (in shares) |  |  |  |  |  |  |  | 118,000 |  |  |  |
Stock option exercises |  |  |  |  |  |  |  |  | 244 |  |  | 244
Stock issued – on vested RSAs (in shares) |  |  |  |  |  |  | 0 | 72,873 |  |  |  |
Net income (loss) |  |  |  |  |  |  |  |  |  |  | (1,133) | (1,133)
Sale of common stock, net of fees (in shares) |  |  |  |  |  |  |  | 5,951,250 |  |  |  |
Sale of common stock, net of fees |  |  |  |  |  |  |  | $ 6 | 80,201 |  |  | 80,207
Common stock issued for services (in shares) |  |  |  |  |  |  |  | 3,175 |  |  |  |
Common stock issued for services |  |  |  |  |  |  |  |  | 60 |  |  | 60
Warrant exercises (in shares) |  |  |  |  |  |  |  | 3,500 |  |  |  |
Warrant exercises |  |  |  |  |  |  |  |  | 70 |  |  | 70
Balance (in shares) at Sep. 30, 2020 |  |  |  |  |  |  |  | 32,131,165 |  |  |  |
Balance at Sep. 30, 2020 |  |  |  |  |  |  |  | $ 32 | 282,076 | 0 | (95,257) | 186,851
Balance (in shares) at Dec. 31, 2020 |  |  |  |  |  |  |  | 33,039,146 |  |  |  |
Balance at Dec. 31, 2020 |  |  |  |  |  |  |  | $ 33 | 302,598 | 0 | (97,385) | 205,246
Stock issued as consideration in GCI acquisition (in shares) | 6,636,470 |  |  | 530,502 |  |  |  |  |  |  |  |
Stock issued as consideration in GCI acquisition | $ 7 | $ 232,734 | $ 232,741 |  | $ 31,977 | $ 31,977 |  |  |  |  |  |
Fees incurred for registration filings |  |  |  |  |  |  |  |  | (188) |  |  | (188)
Stock based compensation |  |  |  |  |  |  |  |  | 8,891 |  |  | 8,891
Stock option exercises (in shares) |  |  |  |  |  |  |  | 632,665 |  |  |  |
Stock option exercises |  |  |  |  |  |  |  | $ 1 | 1,016 |  |  | 1,017
Cashless exercises of warrants (in shares) |  |  |  |  |  |  |  | 70,030 |  |  |  |
Cashless exercises of warrants |  |  |  |  |  |  |  |  | 2,901 |  |  | 2,901
Stock issued – on vested RSAs (in shares) |  |  |  |  |  |  | 0 | 535,378 |  |  |  |
Foreign currency translation |  |  |  |  |  |  |  |  |  | (163) |  | (163)
Net income (loss) |  |  |  |  |  |  |  |  |  |  | 6,837 | 6,837
Balance (in shares) at Sep. 30, 2021 |  |  |  |  |  |  |  | 41,444,191 |  |  |  |
Balance at Sep. 30, 2021 |  |  |  |  |  |  |  | $ 41 | 579,929 | (163) | (90,548) | 489,259
Balance (in shares) at Jun. 30, 2021 |  |  |  |  |  |  |  | 40,560,720 |  |  |  |
Balance at Jun. 30, 2021 |  |  |  |  |  |  |  | $ 41 | 542,864 | 3 | (90,627) | 452,281
Stock issued as consideration in GCI acquisition (in shares) |  |  |  | 530,502 |  |  |  |  |  |  |  |
Stock issued as consideration in GCI acquisition |  |  |  |  | $ 31,977 | $ 31,977 |  |  |  |  |  |
Fees incurred for registration filings |  |  |  |  |  |  |  |  | (188) |  |  | (188)
Stock based compensation |  |  |  |  |  |  |  |  | 4,868 |  |  | 4,868
Stock option exercises (in shares) |  |  |  |  |  |  |  | 244,906 |  |  |  |
Stock option exercises |  |  |  |  |  |  |  |  | 408 |  |  | 408
Stock issued – on vested RSAs (in shares) |  |  |  |  |  |  | 0 | 108,063 |  |  |  |
Foreign currency translation |  |  |  |  |  |  |  |  |  | (166) |  | (166)
Net income (loss) |  |  |  |  |  |  | $ 0 | $ 0 | 0 | 0 | 79 | 79
Balance (in shares) at Sep. 30, 2021 |  |  |  |  |  |  |  | 41,444,191 |  |  |  |
Balance at Sep. 30, 2021 |  |  |  |  |  |  |  | $ 41 | $ 579,929 | $ (163) | $ (90,548) | $ 489,259

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