XML 34 R23.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Note 5 - Earnings Per Share (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2018
Earnings Per Share |
Schedule of computation of earnings per share on a basic and diluted basis |
|  |  | Three months ended |  | Six months ended |
|  |  | June 30, |  | June 30, |
|  |  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Net income |  | $ | 10,445,385 |  | $ | 8,766,017 |  | $ | 20,995,346 |  | $ | 17,950,982 |
Basic EPS |  | $ | 0.75 |  | $ | 0.67 |  | $ | 1.51 |  | $ | 1.36 |
Diluted EPS |  | $ | 0.73 |  | $ | 0.65 |  | $ | 1.48 |  | $ | 1.33 |
Weighted average common shares outstanding |  |  | 13,919,565 |  |  | 13,170,283 |  |  | 13,904,113 |  |  | 13,151,833 |
Weighted average common shares issuable upon exercise of stock options and under the employee stock purchase plan |  |  | 312,858 |  |  | 346,309 |  |  | 314,890 |  |  | 350,672 |
Weighted average common and common equivalent shares outstanding |  |  | 14,232,423 |  |  | 13,516,592 |  |  | 14,219,003 |  |  | 13,502,505 |

X
- References No definition available. + Details
Name: | us-gaap_EarningsPerShareAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
Name: | us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration