Basic and Diluted Loss per Common Share (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Numerator [Abstract]
Net (loss) income	$ 981	$ 827	$ (515)	$ 561
Denominator [Abstract]
Weighted-average shares outstanding for basic loss per share (in shares)	19,651,441	19,196,133	19,580,046	19,154,297
Effect of dilutive securities [Abstract]
Stock options and restricted stock units (in shares)	377,682	365,112	0	317,497
Adjusted weighted-average shares outstanding and assumed conversions for diluted loss per share (in shares)	20,029,123	19,561,245	19,580,046	19,471,794
Shares related to dilutive securities excluded because inclusion would be anti-dilutive (in shares)	374,833	564,833	714,821	564,833

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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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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