ShareBased Employee Compensation (Details 3)	Dec. 31, 2021 $ / shares shares
Stock Options Exercisable | shares	361,600
Weighted average exercise price per share, Exercisable	$ 3.80
Exercise Price 2.23 [Member]
Stock Options Exercisable | shares	211,000
Weighted average exercise price per share, Exercisable	$ 3.20
Exercise Price 4.07 [Member]
Stock Options Exercisable | shares	150,600
Weighted average exercise price per share, Exercisable	$ 4.66
Maximum [Member]
Exercise price one	3.83
Exercise price two	5.10
Minimum [Member]
Exercise price one	2.23
Exercise price two	$ 4.07