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NET INCOME PER SHARE
6 Months Ended
Jun. 30, 2020
NET INCOME PER SHARE  
NET INCOME PER SHARE
3.NET INCOME PER SHARE

In accordance with ASC 260, Earnings Per Share, basic net income per share amount is computed using the weighted-average number of shares of common stock outstanding during the periods presented, while diluted net income per share is computed using the sum of the weighted-average number of common and common equivalent shares outstanding. Common equivalent shares used in the computation of diluted earnings per share result from the assumed exercise of stock options and restricted stock awards using the treasury stock method. For the three-and six month periods ended June 30, 2020, there were 24,304 and 23,692, respectively of common equivalent shares attributable to stock options and restricted stock awards that were included in the calculation of diluted net income per share. For the three and six month periods ended June 30, 2019 there were 41,428 and 51,345, respectively, of common equivalent shares attributable to stock options that were included in the calculation of diluted net income per share. There were 186,036 and 198,536 stock options and restricted stock awards excluded from the calculation of diluted net income per share for the three and six month periods ended June 30, 2020, respectively, because their effects are anti-dilutive. There were 63,750 stock options to purchase shares excluded from the calculation of diluted net income per share for the three and six month periods ended June 30, 2019, because their effects are anti-dilutive.