Stock-Based Compensation (Details) - Stock Options [Member] - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Summary of options outstanding by exercise price range
Options Outstanding, Number Outstanding at 12/31/17	52,500
Options Outstanding, Weighted Average Remaining Contractual Life (years)	1 year 4 months 13 days	1 year 4 months 28 days	2 years 2 months 5 days
Options Outstanding, Weighted Average Exercise Price	$ 27.51
Range One [Member]
Summary of options outstanding by exercise price range
Range of Exercise Price, Lower Range Limit	0
Range of Exercise Price, Upper Range Limit	$ 15.00
Options Outstanding, Number Outstanding at 12/31/17	32,500
Options Outstanding, Weighted Average Remaining Contractual Life (years)	10 months 25 days
Options Outstanding, Weighted Average Exercise Price	$ 14.95
Range Two [Member]
Summary of options outstanding by exercise price range
Range of Exercise Price, Lower Range Limit	15.01
Range of Exercise Price, Upper Range Limit	$ 30.40
Options Outstanding, Number Outstanding at 12/31/17	8,000
Options Outstanding, Weighted Average Remaining Contractual Life (years)	3 months 29 days
Options Outstanding, Weighted Average Exercise Price	$ 30.40
Range Three [Member]
Summary of options outstanding by exercise price range
Range of Exercise Price, Lower Range Limit	30.40
Range of Exercise Price, Upper Range Limit	$ 62.10
Options Outstanding, Number Outstanding at 12/31/17	12,000
Options Outstanding, Weighted Average Remaining Contractual Life (years)	1 month 20 days
Options Outstanding, Weighted Average Exercise Price	$ 59.60