EARNINGS PER SHARE

The following table is a reconciliation of the numerators and denominators in the net income (loss) per common share calculations (in thousands, except per common share data):



	Three months ended March 31,					Six months ended March 31,
	2019		2018 (as adjusted)*			2019		2018 (as adjusted)*
Numerator:
Net income (loss)	$	1,342	$	(126	)	$	6,024	$	(4,613	)

Denominator:
Denominator for basic net income (loss) per common share — weighted average shares outstanding	27,866		27,084			27,687		26,914
Effect of dilutive securities:
Stock options and restricted stock units	572		—			602		—
Denominator for diluted net income (loss) per common share — adjusted weighted average shares	28,438		27,084			28,289		26,914

Net income (loss) per common share, basic	$	0.05	$	—		$	0.22	$	(0.17	)
Net income (loss) per common share, diluted	$	0.05	$	—		$	0.21	$	(0.17	)

*Prior period information has been restated for the adoption of ASU No. 2014-09, “Revenue from Contracts with Customers (Topic 606),” which we adopted on October 1, 2018.

For the three months ended March 31, 2019 and 2018, there were 633,752 and 1,458,297 potentially dilutive shares, respectively, and for the six months ended March 31, 2019 and 2018, there were 683,752 and 1,988,673 potentially dilutive shares, respectively, related to stock options to purchase common shares that were not included in the above computation of diluted earnings per common share since the options’ exercise prices were greater than the average market price of our common shares. In addition, due to the net loss for the three and six month periods ended March 31, 2018, there were 275,522 and 333,801, respectively, common stock options and restricted stock units that were not included in the above computation of diluted earnings per share.