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Acquisitions - Additional Information (Details) - USD ($) |  |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Apr. 27, 2017 | Dec. 17, 2015 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Business acquisition, revenue |  |  | $ 12,807,175 | $ 12,448,436 | $ 13,013,143 | $ 11,252,417 | $ 12,625,966 | $ 12,439,279 | $ 9,856,317 | $ 8,512,305 | $ 49,521,171 | $ 43,433,867 | $ 27,793,073
Business acquisition, cost of goods sold |  |  |  |  |  |  |  |  |  |  | 26,218,965 | 24,156,792 | 16,148,163
Net income (loss) |  |  | 591,933 | $ 234,353 | $ (70,121) | $ 385,090 | 1,100,302 | $ 1,183,044 | $ 1,311,209 | $ 139,153 | 1,141,255 | 3,733,707 | (270,342)
Goodwill |  |  | $ 3,700,447 |  |  |  | $ 1,249,956 |  |  |  | 3,700,447 | 1,249,956 | 1,249,956
Business acquisition up front payment |  |  |  |  |  |  |  |  |  |  | 6,348,730 |  | $ 4,000,000
Antenna Plus |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total consideration paid in cash | $ 6,348,730 |  |  |  |  |  |  |  |  |  |  |  |
Business acquisition, revenue |  |  |  |  |  |  |  |  |  |  | 5,200,000 |  |
Business acquisition, cost of goods sold |  |  |  |  |  |  |  |  |  |  | 2,300,000 |  |
Net income (loss) |  |  |  |  |  |  |  |  |  |  | $ 400,000 |  |
Business acquisition pro forma information description |  |  |  |  |  |  |  |  |  |  | The pro forma information includes adjustments to amortization and depreciation for intangible assets and property, plant and equipment acquired. The pro forma data are for informational purposes only and are not necessarily indicative of the consolidated results of operations of the combined business had the acquisition actually occurred at the beginning of fiscal year 2015 or of the results of future operations of the combined business. |  |
Goodwill | 2,450,491 |  |  |  |  |  |  |  |  |  |  |  |
Business acquisition up front payment | 6,383,500 |  |  |  |  |  |  |  |  |  |  |  |
Accounts receivable | $ 584,390 |  |  |  |  |  |  |  |  |  |  |  |
Skycross, Inc. |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total consideration paid in cash |  | $ 5,000,000 |  |  |  |  |  |  |  |  |  |  |
Business acquisition, revenue |  |  |  |  |  |  |  |  |  |  | $ 5,200,000 | 5,000,000 |
Business acquisition, cost of goods sold |  |  |  |  |  |  |  |  |  |  | $ 1,700,000 | 1,700,000 |
Date of asset purchase agreement |  |  |  |  |  |  |  |  |  |  | Dec. 17, 2015 |  |
Goodwill |  | 1,249,956 |  |  |  |  |  |  |  |  |  |  |
Goodwill, expected tax deductible amount |  | 1,249,956 |  |  |  |  |  |  |  |  |  |  |
Business acquisition up front payment |  | 4,000,000 |  |  |  |  |  |  |  |  |  |  |
Business combination, contingent consideration arrangements, description |  |  |  |  |  |  |  |  |  |  | The $1.0 million of deferred consideration is payable upon the later of (i) the expiration of the Transition Services Agreement between the Company and Skycross which defines transition services to be provided by Skycross to the Company, and (ii) the date on which the Company has received copies of third party approvals with respect to each customer and program that was purchased. |  |
Contingent consideration arrangement |  | 1,000,000 |  |  |  |  |  |  |  |  | $ 1,000,000 | $ 1,000,000 |
Amount to be paid under contingent consideration arrangements, value, low |  | 0 |  |  |  |  |  |  |  |  |  |  |
Amount to be paid under contingent consideration arrangements, value, high |  | 1,000,000 |  |  |  |  |  |  |  |  |  |  |
Accounts receivable |  | $ 429,267 |  |  |  |  |  |  |  |  |  |  |

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