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EARNINGS PER SHARE
9 Months Ended
Sep. 30, 2016
Earnings Per Share [Abstract]  
EARNINGS PER SHARE
4.
EARNINGS PER SHARE
 
Basic earnings per share is computed by dividing net income available to common shareholders by the weighted-average number of shares of common stock outstanding during the period.
 
For periods of net income, and when the effects are not anti-dilutive, we calculate diluted earnings per share by dividing net income available to common shareholders by the weighted-average number of shares outstanding plus the impact of all potential dilutive common shares, consisting primarily of common stock options, shares to be purchased under our Employee Stock Purchase Plan (“ESPP”), unvested restricted stock awards, stock purchase warrants, and any conversion gain on our Notes (Note 3), using the treasury stock method. For periods of net loss, diluted loss per share is calculated similarly to basic loss per share.
 
Our unvested restricted shares contain non-forfeitable rights to dividends, and therefore are considered to be participating securities; in periods of net income, the calculation of basic and diluted earnings per share excludes from the numerator net income attributable to the unvested restricted shares, and excludes the impact of those shares from the denominator.
 
For purposes of determining diluted earnings per share, we have elected a policy to assume that the principal portion of the Notes (Note 3) is settled in cash. As such, the principal portion of the Notes has no effect on either the numerator or denominator when determining diluted earnings per share. Any conversion gain is assumed to be settled in shares and is incorporated in diluted earnings per share using the treasury method. The warrants issued in conjunction with the issuance of the Notes (Note 3) are considered to be dilutive when they are in-the-money relative to our average stock price during the period; the bond hedge purchased in conjunction with the issuance of the Notes is always considered to be anti-dilutive.
 
Earnings per share for the three and nine months ended September 30, 2016 and 2015 are calculated for basic and diluted earnings per share as follows: 
 
 
 
Basic
 
Diluted
 
Basic
 
Diluted
 
 
 
Three Months Ended
 
Three Months Ended
 
Nine Months Ended
 
Nine Months Ended
 
(in thousands, except per share amounts)
 
September 30,
 
September 30,
 
September 30,
 
September 30,
 
 
 
2016
 
2015
 
2016
 
2015
 
2016
 
2015
 
2016
 
2015
 
Net income
 
$
2,543
 
$
4,559
 
$
2,543
 
$
4,559
 
$
5,014
 
$
12,499
 
$
5,014
 
$
12,499
 
Net income allocated to restricted stock
 
 
(17)
 
 
(30)
 
 
(17)
 
 
(30)
 
 
(34)
 
 
(82)
 
 
(34)
 
 
(82)
 
Net income allocated to common shares
 
$
2,526
 
$
4,529
 
$
2,526
 
$
4,529
 
$
4,980
 
$
12,417
 
$
4,980
 
$
12,417
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Basic Weighted-Average Shares Outstanding
 
 
11,465
 
 
11,384
 
 
11,465
 
 
11,384
 
 
11,421
 
 
11,352
 
 
11,421
 
 
11,352
 
Dilutive effect of stock options and ESPP
 
 
 
 
 
 
 
 
160
 
 
179
 
 
 
 
 
 
 
 
131
 
 
207
 
Diluted Weighted-Average Shares Outstanding
 
 
 
 
 
 
 
 
11,625
 
 
11,563
 
 
 
 
 
 
 
 
11,552
 
 
11,559
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Earnings Per Share
 
$
0.22
 
$
0.40
 
$
0.22
 
$
0.39
 
$
0.44
 
$
1.09
 
$
0.43
 
$
1.07
 
 
The number of anti-dilutive shares, which have been excluded from the computation of diluted earnings per share, including the shares underlying the Notes, was 4.5 million for each of the three month periods ended September 30, 2016 and 2015 and was 4.5 million and 4.6 million for the nine months ended September 30, 2016 and 2015, respectively. Anti-dilutive shares consist of out-of-the-money Class C Special stock, out-of-the-money common stock options, common stock options that are anti-dilutive when calculating the impact of the potential dilutive common shares using the treasury stock method, underlying shares related to out-of-the-money bonds issued as convertible debt, and out-of-the-money warrants exercisable for common stock.