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Net Income (Loss) Per Common Share | 3 Months Ended
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Mar. 31, 2018
Earnings Per Share [Abstract] |
Net Income (Loss) Per Common Share | Note 7 — Net Income (Loss) Per Common Share Basic net income (loss) per common share is computed by dividing net income (loss) by the basic weighted average number of common shares outstanding during the period. Diluted net income (loss) per common share is computed by dividing net income (loss) by the diluted weighted average number of common shares and common equivalent shares outstanding during the period. The weighted average number of common equivalent shares outstanding has been determined in accordance with the treasury-stock method. Common equivalent shares consist of common stock issuable on the exercise of outstanding stock options and the vesting of restricted stock units. Basic and diluted weighted average common shares are as follows (in thousands):
|  | Three Months Ended March 31, |
|  | 2018 |  |  | 2017 |
Basic weighted average common shares outstanding |  |  | 18,036 |  |  |  | 18,230 |
Weighted average common equivalent shares |  |  | — |  |  |  | 306 |
Diluted weighted average common shares outstanding |  |  | 18,036 |  |  |  | 18,536 |
Options excluded from diluted weighted average share calculation as effect would have been anti-dilutive |  |  | 1,059 |  |  |  | 374 |

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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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