NET INCOME PER SHARE	6 Months Ended
Jun. 30, 2019
NET INCOME PER SHARE [Abstract]
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 using the treasury stock method. 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 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. For the three and six month periods ended June 30, 2018 there were 100,219 and 105,285, respectively, of common equivalent shares attributable to stock options that were included in the calculation of diluted net income per share. There were zero 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, 2018, respectively, because their effects are anti-dilutive.

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 using the treasury stock method. 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 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.

For the three and six month periods ended June 30, 2018 there were 100,219 and 105,285, respectively, of common equivalent shares attributable to stock options that were included in the calculation of diluted net income per share. There were zero 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, 2018, respectively, because their effects are anti-dilutive.