Stock Option Plan and Stock-Based Compensation (Details 3)	12 Months Ended
	Dec. 31, 2019 USD ($) $ / shares shares
Exercise Price, Lower Range Limit	$ 0.61
Exercise Price, Upper Range Limit	$ 1.21
Options Outstanding, Number of Options | shares	341,000
Options Outstanding, Weighted Average Exercise Price Per Share	$ 0.96
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	2 years 7 months 24 days
Options Outstanding, Aggregate Intrinsic Value | $
Exercisable Options, Number of Options | shares	341,000
Exercisable Options, Weighted Average Exercise Price Per Share	$ 0.96
Exercisable Options, Weighted Average Remaining Contractual Life (Years)	2 years 7 months 24 days
Exercisable Options, Aggregate Intrinsic Value | $
Exercise Price 0.61 [Member]
Options Outstanding, Number of Options | shares	45,000
Options Outstanding, Weighted Average Exercise Price Per Share	$ 0.61
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	2 years 10 months 3 days
Options Outstanding, Aggregate Intrinsic Value | $
Exercisable Options, Number of Options | shares	45,000
Exercisable Options, Weighted Average Exercise Price Per Share	$ 0.61
Exercisable Options, Weighted Average Remaining Contractual Life (Years)	2 years 10 months 3 days
Exercisable Options, Aggregate Intrinsic Value | $
Exercise Price 0.73 [Member]
Options Outstanding, Number of Options | shares	3,000
Options Outstanding, Weighted Average Exercise Price Per Share	$ 0.73
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	2 years 8 months 23 days
Options Outstanding, Aggregate Intrinsic Value | $
Exercisable Options, Number of Options | shares	3,000
Exercisable Options, Weighted Average Exercise Price Per Share	$ 0.73
Exercisable Options, Weighted Average Remaining Contractual Life (Years)	2 years 8 months 23 days
Exercisable Options, Aggregate Intrinsic Value | $
Exercise Price 0.95 [Member]
Options Outstanding, Number of Options | shares	200,000
Options Outstanding, Weighted Average Exercise Price Per Share	$ 0.95
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	2 years 8 months 12 days
Options Outstanding, Aggregate Intrinsic Value | $
Exercisable Options, Number of Options | shares	200,000
Exercisable Options, Weighted Average Exercise Price Per Share	$ 0.95
Exercisable Options, Weighted Average Remaining Contractual Life (Years)	2 years 8 months 12 days
Exercisable Options, Aggregate Intrinsic Value | $
Exercise Price 1.09 [Member]
Options Outstanding, Number of Options | shares	3,000
Options Outstanding, Weighted Average Exercise Price Per Share	$ 1.09
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	2 years 6 months
Options Outstanding, Aggregate Intrinsic Value | $
Exercisable Options, Number of Options | shares	3,000
Exercisable Options, Weighted Average Exercise Price Per Share	$ 1.09
Exercisable Options, Weighted Average Remaining Contractual Life (Years)	2 years 6 months
Exercisable Options, Aggregate Intrinsic Value | $
Exercise Price 1.10 [Member]
Options Outstanding, Number of Options | shares	45,000
Options Outstanding, Weighted Average Exercise Price Per Share	$ 1.10
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	2 years 6 months 29 days
Options Outstanding, Aggregate Intrinsic Value | $
Exercisable Options, Number of Options | shares	45,000
Exercisable Options, Weighted Average Exercise Price Per Share	$ 1.10
Exercisable Options, Weighted Average Remaining Contractual Life (Years)	2 years 6 months 29 days
Exercisable Options, Aggregate Intrinsic Value | $
Exercise Price 1.21 [Member]
Options Outstanding, Number of Options | shares	45,000
Options Outstanding, Weighted Average Exercise Price Per Share	$ 1.21
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	2 years 3 months 29 days
Options Outstanding, Aggregate Intrinsic Value | $
Exercisable Options, Number of Options | shares	45,000
Exercisable Options, Weighted Average Exercise Price Per Share	$ 1.21
Exercisable Options, Weighted Average Remaining Contractual Life (Years)	2 years 3 months 29 days
Exercisable Options, Aggregate Intrinsic Value | $