Quarterly Operating Results (Details) - USD ($) |
3 Months Ended | 12 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2020 |
Sep. 30, 2020 |
Jun. 30, 2020 |
Mar. 31, 2020 |
Dec. 31, 2019 |
Sep. 30, 2019 |
Jun. 30, 2019 |
Mar. 31, 2019 |
Dec. 31, 2020 |
Dec. 31, 2019 |
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| Selected Quarterly Financial Information [Line Items] | ||||||||||
| Sales | $ 11,675,000 | $ 12,110,000 | $ 9,628,000 | $ 9,163,000 | $ 15,364,000 | $ 13,622,000 | $ 10,704,000 | $ 11,216,000 | $ 42,575,546 | $ 50,906,179 |
| Operating income (loss) from continuing operations | (133,000) | 306,000 | (1,646,000) | (1,224,000) | 1,187,000 | 772,000 | (1,129,000) | (821,000) | (2,697,350) | 9,214 |
| Net (loss) income from continuing operations | (174,000) | 554,000 | (1,367,000) | (809,000) | 1,214,000 | 877,000 | (1,069,000) | (771,000) | (1,795,674) | 250,619 |
| Net income (loss) from discontinued operations | 171,000 | (291,000) | (569,000) | 2,313,000 | 506,000 | 860,000 | 3,842,000 | 1,010,000 | 1,624,016 | 6,218,430 |
| Net income (loss) | $ (3,000) | $ 263,000 | $ (1,936,000) | $ 1,504,000 | $ 1,720,000 | $ 1,737,000 | $ 2,773,000 | $ 239,000 | $ (171,658) | $ 6,469,049 |
| Basic net (loss) income per share: | ||||||||||
| Continuing operations | $ (0.01) | $ 0.06 | $ (0.15) | $ (0.09) | $ 0.13 | $ 0.09 | $ (0.11) | $ (0.08) | $ (0.19) | $ 0.03 |
| Discontinued operations | 0.01 | (0.03) | (0.06) | 0.25 | 0.06 | 0.09 | 0.41 | 0.11 | 0.17 | 0.67 |
| Diluted net (loss) income per share: | ||||||||||
| Continuing operations | (0.01) | 0.06 | (0.15) | (0.09) | 0.13 | 0.09 | (0.11) | (0.08) | (0.19) | 0.03 |
| Discontinued operations | $ 0.01 | $ (0.03) | $ (0.06) | $ 0.25 | $ 0.05 | $ 0.09 | $ 0.41 | $ 0.11 | $ 0.17 | $ 0.66 |
| Discontinued Operations, Disposed of by Sale [Member] | ||||||||||
| Diluted net (loss) income per share: | ||||||||||
| Gain on sale of business line | $ 2,247,000 | |||||||||
| Discontinued Operations, Disposed of by Sale [Member] | Suttle FutureLink Fiber Business Line [Member] | ||||||||||
| Diluted net (loss) income per share: | ||||||||||
| Gain on sale of business line | $ 2,967,000 | |||||||||
| Discontinued Operations, Disposed of by Sale [Member] | Remainder of Suttle Business Lines [Member] | ||||||||||
| Diluted net (loss) income per share: | ||||||||||
| Gain on sale of business line | $ 2,161,000 | |||||||||
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- Definition Selected Quarterly Financial Information [Line Items] No definition available.
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- Definition Amount of gain (loss) on sale or disposal of other assets. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount after tax of income (loss) from continuing operations including portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of net income (loss) from continuing operations per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of net income (loss) derived from continuing operations during the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount after tax of income (loss) from a discontinued operation including the portion attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Per basic share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Per diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The net result for the period of deducting operating expenses from operating revenues. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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