Earnings per share ("EPS") (Tables)

9 Months Ended

Sep. 30, 2017

Earnings Per Share [Abstract]

Schedule of Reconciliation of Weighted Average Shares Used in Diluted EPS

The following is a reconciliation of the weighted average shares used in diluted EPS computations.

	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016
Weighted average common shares-basic		18,180,845		18,091,650		18,071,093		18,238,533
Effect of dilutive securities
Unexercised stock options and stock purchase plan		249,667		194,922		164,716		181,126
Unvested time-based restricted stock awards and units		94,470		95,546		117,320		150,202
Unvested market-based restricted stock units		47,809		—		41,413		—
Weighted average common shares-diluted		18,572,791		18,382,118		18,394,542		18,569,861