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Note 4 - Earnings Per Share | 3 Months Ended
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Mar. 31, 2017
Notes to Financial Statements |
Earnings Per Share [Text Block] | NOTE 4 - EARNINGS PER SHARE The following information was used in the computation of EPS on a basic and diluted basis:
|  | Three months ended |
|  | March 31, |
|  | 2017 |  |  | 2016 |
Net income |  | $ | 9,184,965 |  |  | $ | 6,373,489 |
Basic EPS |  | $ | 0.70 |  |  | $ | 0.54 |
Diluted EPS |  | $ | 0.68 |  |  | $ | 0.53 |
Weighted average common shares outstanding |  |  | 13,133,382 |  |  |  | 11,793,620 |
Weighted average common shares issuable upon exercise of stock options and under the employee stock purchase plan |  |  | 355,035 |  |  |  | 160,329 |
Weighted average common and common equivalent shares outstanding |  |  | 13,488,417 |  |  |  | 11,953,949 |
The increase in weighted average common shares outstanding from March 31, 2016 to March 31, 2017 was primarily due to the common stock issuance discussed in Note 2 of the Company’s Annual Report on Form 10 -K for the year ended December 31, 2016.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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