INCOME PER COMMON SHARE	9 Months Ended
Sep. 30, 2018
Earnings Per Share [Abstract]
INCOME PER COMMON SHARE	7. income PER COMMON SHARE Basic income per common share is computed using the weighted average number of common shares outstanding. Diluted income per common share for the three and nine months ended September 30, 2018 and 2017 is computed using the weighted-average number of common shares outstanding adjusted for the incremental shares attributed to outstanding options to purchase common stock, as well as unvested RSUs. Incremental shares of 49,641 were used in the calculation of diluted income per common share in the three and nine months ended September 30, 2018. Incremental shares of 43,064 were not used in the calculation of diluted income per common share in the three and nine months ended September 30, 2018, as their exercise price was in excess of the Company’s average stock price for the respective period and, accordingly, these shares are not assumed to be exercised for the diluted earnings per share calculation, as they would be anti-dilutive. Incremental shares of 74,168 were used in the calculation of diluted income per common share in the three and nine months ended September 30, 2017. Incremental shares of 89,466 were not used in the calculation of diluted income per common share in the three and nine months ended September 30, 2017, as their exercise price was in excess of the Company’s average stock price for the respective period and, accordingly, these shares are not assumed to be exercised for the diluted earnings per share calculation, as they would be anti-dilutive.

INCOME PER COMMON SHARE

9 Months Ended

Sep. 30, 2018

7. income PER COMMON SHARE

Basic income per common share is computed using the weighted average number of common shares outstanding. Diluted income per common share for the three and nine months ended September 30, 2018 and 2017 is computed using the weighted-average number of common shares outstanding adjusted for the incremental shares attributed to outstanding options to purchase common stock, as well as unvested RSUs. Incremental shares of 49,641 were used in the calculation of diluted income per common share in the three and nine months ended September 30, 2018. Incremental shares of 43,064 were not used in the calculation of diluted income per common share in the three and nine months ended September 30, 2018, as their exercise price was in excess of the Company’s average stock price for the respective period and, accordingly, these shares are not assumed to be exercised for the diluted earnings per share calculation, as they would be anti-dilutive. Incremental shares of 74,168 were used in the calculation of diluted income per common share in the three and nine months ended September 30, 2017. Incremental shares of 89,466 were not used in the calculation of diluted income per common share in the three and nine months ended September 30, 2017, as their exercise price was in excess of the Company’s average stock price for the respective period and, accordingly, these shares are not assumed to be exercised for the diluted earnings per share calculation, as they would be anti-dilutive.