Net Income (Loss) Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Numerator:
Income (loss) from continuing operations	$ 118	$ (576)	$ 3,097	$ 917
Income (loss) from discontinued operations, net of income taxes	0	0	0	1,938
Net income (loss)	$ 118	$ (576)	$ 3,097	$ 2,855
Denominator:
Weighted average common shares - basic (in shares)	12,314,000	12,628,000	12,412,000	13,023,000
Effect of dilutive securities: stock options (in shares)	349,000	0	218,000	17,000
Weighted average common shares - diluted (in shares)	12,663,000	12,628,000	12,630,000	13,040,000
Income (loss) per share—basic:
Continuing operations (in dollars per share)	$ 0.01	$ (0.05)	$ 0.25	$ 0.07
Discontinued operations (in dollars per share)	0.00	0.00	0.00	0.15
Net income (loss) per share - basic (in dollars per share)	0.01	(0.05)	0.25	0.22
Income (loss) per share—diluted:
Continuing operations (in dollars per share)	0.01	(0.05)	0.25	0.07
Discontinued operations (in dollars per share)	0.00	0.00	0.00	0.15
Net income (loss) per share - diluted (in dollars per share)	$ 0.01	$ (0.05)	$ 0.25	$ 0.22
Anti-dilutive shares not included in computation of net income (loss) per common share (in shares)	220,000	562,500	220,000	162,500

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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- Definition

Per basic share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation.

+ References

No definition available.