Net Income Per Share (Details 1) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Earnings Per Share [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	12,107	57,091	12,080	15,045
Dilutive securities	503,000	626,000	542,000	714,000
Diluted (in shares)	21,703,000	21,506,000	21,718,000	21,545,000
Basic (in dollars per share)	$ 1.34	$ 0.91	$ 2.46	$ 1.72
Diluted (in dollars per share)	$ 1.31	$ 0.88	$ 2.40	$ 1.66