Earnings Per Share (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Earnings Per Share [Abstract]
Options to purchase common stock excluded from potentially dilutive securities (in shares)	1,712,527	291,700	1,812,142	133,500
Potentially dilutive securities excluded from calculation of diluted earnings per share (in shares)		302,550		462,317