Net Loss per Common Share

Basic net loss per share is calculated based on the weighted average number of common shares outstanding during the period. Diluted net loss per share incorporates the dilutive effect of common stock equivalent options, warrants and other convertible securities, if any, as determined with the treasury stock accounting method. For the three and nine months ended September 30, 2019, since there was a net loss from continuing operations, the Company excluded all 1,565 and 1,221, respectively, in outstanding stock options and non-vested restricted shares from its diluted loss per share calculation, as inclusion of these securities would have reduced the net loss per share. For the three and nine months ended September 30, 2018, since there was a net loss from continuing operations, the Company excluded all 932 and 739, respectively, in outstanding stock options and non-vested restricted shares from its diluted loss per share calculation, as inclusion of these securities would have reduced the net loss per share.

A reconciliation of the basic and diluted weighted average common shares outstanding for net loss from continuing operations is as follows:



	Three Months Ended		Nine Months Ended
	September 30,		September 30,
	2019	2018	2019	2018
Weighted average common shares outstanding—basic	17,521	17,188	17,429	17,025
Dilutive common shares issuable in connection with stock plans	—	—	—	—
Weighted average common shares outstanding—diluted	17,521	17,188	17,429	17,025