Net Income Per Share (Details 1) - $ / shares	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Earnings Per Share [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	12,080	15,333
Dilutive securities	546,000	727,000
Diluted (in shares)	21,695,000	21,507,000
Basic (in dollars per share)	$ 1.12	$ 0.81
Diluted (in dollars per share)	$ 1.09	$ 0.78