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v3.19.1

Consolidated Statements of Stockholders' Equity - USD ($) | Total | Capital Stock [Member] | Treasury Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive (Loss)/Income [Member]
--- | --- | --- | --- | --- | --- | ---
Beginning balance at Dec. 31, 2015 |  | $ 583,051,160 | $ 442,850 | $ (20,486,872) | $ 501,002,146 | $ 102,486,324 | $ (393,288)
Balance (in shares) at Dec. 31, 2015 |  |  | 44,285,108 | (3,767,432) |  |  |
Stock based compensation |  | 340,377 |  |  | 340,377 |  |
Stock repurchase |  | (2,036,656) |  | $ (2,036,656) |  |  |
Stock repurchase (in shares) |  |  |  | (657,113) |  |  |
Comprehensive loss for the year |  | (7,379,577) |  |  |  | (7,798,300) | 418,723
Ending balance at Dec. 31, 2016 |  | 573,975,304 | $ 442,850 | $ (22,523,528) | 501,342,523 | 94,688,024 | 25,435
Ending Balance, (in shares) at Dec. 31, 2016 |  |  | 44,285,108 | (4,424,545) |  |  |
Stock based compensation |  | 129,245 |  |  | 129,245 |  |
Comprehensive loss for the year |  | (625,777) |  |  |  | (1,218,237) | 592,460
Ending balance at Dec. 31, 2017 |  | 573,478,772 | $ 442,850 | $ (22,523,528) | 501,471,768 | 93,469,787 | 617,895
Ending Balance, (in shares) at Dec. 31, 2017 |  |  | 44,285,108 | (4,424,545) |  |  |
Issuance of restricted shares and stock based compensation |  | 338,356 | $ 2,646 |  | 335,710 |  |
Issuance of restricted shares and stock based compensation (in shares) |  |  | 264,621 |  |  |  |
Cumulative effect of accounting change | [1] | (344,181) |  |  |  | (344,181) |
Comprehensive loss for the year |  | (12,220,436) |  |  |  | (12,276,520) | 56,084
Ending balance at Dec. 31, 2018 |  | $ 561,252,511 | $ 445,496 | $ (22,523,528) | $ 501,807,478 | $ 80,849,086 | $ 673,979
Ending Balance, (in shares) at Dec. 31, 2018 |  |  | 44,549,729 | (4,424,545) |  |  |
[1] | Opening retained earnings have been adjusted on January 1, 2018 in connection with the adoption of Accounting Standard ASC 606. Please refer to Note 2 Significant Accounting Policies to the consolidated financial statements.

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