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Note 5 - Earnings Per Share | 9 Months Ended
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Sep. 30, 2016
Notes to Financial Statements |
Earnings Per Share [Text Block] | NOTE 5 - EARNINGS PER SHARE The following information was used in the computation of EPS on a basic and diluted basis:
|  | Three months ended |  |  | Nine months ended |
|  | September 30, |  |  | September 30, |
|  | 2016 |  |  | 2015 |  |  | 2016 |  |  | 2015 |
Net income |  | $ | 6,107,501 |  |  | $ | 6,488,987 |  |  | $ | 19,157,457 |  |  | $ | 10,143,058 |
Basic EPS |  | $ | 0.47 |  |  | $ | 0.55 |  |  | $ | 1.55 |  |  | $ | 1.03 |
Diluted EPS |  | $ | 0.46 |  |  | $ | 0.55 |  |  | $ | 1.52 |  |  | $ | 1.01 |
Weighted average common shares outstanding* |  |  | 13,066,777 |  |  |  | 11,713,993 |  |  |  | 12,398,491 |  |  |  | 9,878,882 |
Weighted average common shares issuable upon exercise of stock options and under the employee stock purchase plan |  |  | 202,926 |  |  |  | 161,937 |  |  |  | 181,551 |  |  |  | 145,559 |
Weighted average common and common equivalent shares outstanding |  |  | 13,269,703 |  |  |  | 11,875,930 |  |  |  | 12,580,042 |  |  |  | 10,024,441 |
*The increase in the weighted average common shares outstanding was primarily due to the common stock issuance discussed in Note 9 to the Consolidated Financial Statements.

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