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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) | Total | Common Stock | Additional Paid in Capital | Accumulated Deficit | Treasury Stock
--- | --- | --- | --- | --- | ---
Beginning Balance (in shares) at Dec. 31, 2015 |  | 24,375,881 |  |  |
Beginning Balance at Dec. 31, 2015 | $ 10,960,444 | $ 24,752 | $ 129,081,029 | $ (116,748,778) | $ (1,396,559)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Net loss | (772,584) |  |  | (772,584) |
Stock-based compensation | 1,264,266 |  | 1,264,266 |  |
Treasury Stock Repurchase (in shares) |  | (15,883) |  |  |
Treasury Stock Repurchase | (22,499) | $ (16) | (22,483) |  |
Stock issued for vested restricted stock awards (in shares) |  | 396,997 |  |  |
Stock issued for vested restricted stock awards | 0 | $ 397 | (397) |  |
Contingent stock issuance (in shares) |  | 166,667 |  |  |
Contingent stock issuance | 300,001 | $ 167 | 299,834 |  |
Taxes withheld on vested restricted stock | (203,836) |  | (203,836) |  |
Ending Balance (in shares) at Dec. 31, 2016 |  | 24,923,662 |  |  |
Ending Balance at Dec. 31, 2016 | 11,525,792 | $ 25,300 | 130,418,413 | (117,521,362) | (1,396,559)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Net loss | (3,057,700) |  |  | (3,057,700) |
Stock-based compensation | 1,279,807 |  | 1,279,807 |  |
Stock issued for vested restricted stock awards (in shares) |  | 309,057 |  |  |
Stock issued for vested restricted stock awards | 22,509 | $ 309 | 22,200 |  |
NetSeer acquisition (in shares) |  | 3,529,000 |  |  |
NetSeer acquisition | 4,459,244 | $ 3,529 | 4,455,715 |  |
Taxes withheld on vested restricted stock | (97,539) |  | (97,539) |  |
Treasury Stock Retirement (in shares) |  | (143,265) |  |  |
Treasury Stock Retirement | (44,771) | $ (142) | (44,629) |  |
Ending Balance (in shares) at Dec. 31, 2017 |  | 28,618,454 |  |  |
Ending Balance at Dec. 31, 2017 | $ 14,087,342 | $ 28,996 | $ 136,033,967 | $ (120,579,062) | $ (1,396,559)

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