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v3.19.1

Consolidated Statements of Shareholders' Equity - USD ($) | Total | Common Stock | Capital in Excess of Par Value | Retained Earnings | Accumulated Other Comprehensive Income (Loss) | Cost of Common Stock in Treasury
--- | --- | --- | --- | --- | --- | ---
Balance balance at Dec. 31, 2015 | $ 95,154,294 | $ 10,300,000 | $ 34,476,240 | $ 65,029,474 | $ 0 | $ (14,651,420)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net (loss) income | (7,093,301) |  |  | (7,093,301) |  |
Dividend on stock grant forfeiture | 360 |  |  | 360 |  |
Issuance of shares of common stock from the treasury | 325,618 |  | (221,507) |  |  | 547,125
Employee stock option and grant compensation | 459,473 |  | 459,473 |  |  |
Purchase of common stock | (253,889) |  |  |  |  | (253,889)
Ending balance at Dec. 31, 2016 | 88,592,555 | 10,300,000 | 34,714,206 | 57,936,533 | 0 | (14,358,184)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net (loss) income | 1,341,362 |  |  | 1,341,362 |  |
Payment of dividends | (1,148,513) |  |  | (1,148,513) |  |
Other comprehensive loss | (10,864) |  |  |  | (10,864) |
Issuance of shares of common stock from the treasury | 287,470 |  | (227,939) |  |  | 515,409
Stock options exercised, net | 0 |  | 68,469 |  |  | (68,469)
Employee stock option and grant compensation | 638,416 |  | 638,416 |  |  |
Ending balance at Dec. 31, 2017 | 89,700,426 | 10,300,000 | 35,193,152 | 58,129,382 | (10,864) | (13,911,244)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net (loss) income | 13,097,429 |  |  | 13,097,429 |  |
Payment of dividends | (2,250,537) |  |  | (2,250,537) |  |
Issuance of shares of common stock from the treasury | 276,000 |  | (316,705) |  |  | 592,705
Stock options exercised, net | (148,751) |  | 246,757 |  |  | (395,508)
Employee stock option and grant compensation | 826,998 |  | 826,998 |  |  |
Shares issued in connection with at-the-market offering | 982,521 |  | 570,638 |  |  | 411,883
Ending balance at Dec. 31, 2018 | $ 102,484,086 | $ 10,300,000 | $ 36,520,840 | $ 68,965,410 | $ 0 | $ (13,302,164)

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