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Earnings Per Share (Tables) | 6 Months Ended
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Jun. 30, 2017
Earnings Per Share [Abstract] |
Schedule of Weighted-Average Number of Shares | ﻿ ﻿ Weighted-average Common Shares outstanding used in calculating basic and diluted earnings per share were as follows: ﻿
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﻿ |  | Three months ended |  | Six months ended
﻿ |  | June 30, |  | June 30,
﻿ |  | 2017 |  | 2016 |  | 2017 |  | 2016
﻿Basic weighted-average Common Shares outstanding |  | 28,133,432 |  | 27,790,639 |  | 28,025,805 |  | 27,733,288
﻿Effect of dilutive shares |  | 384,010 |  | 471,515 |  | 504,874 |  | 474,466
﻿Diluted weighted-average Common Shares outstanding |  | 28,517,442 |  | 28,262,154 |  | 28,530,679 |  | 28,207,754
﻿

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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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
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