ShareBased Employee Compensation (Details 1) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Significant customers
Outstanding Stock Options	676,500	489,000
Vested Stock Options	361,600	185,800
Nonvested Stock Options	314,900	303,200
Issued Stock Options	202,500
Exercised Stock Option	0
Forfeited Stock Option	5,000
Expired Stock Options	10,000
Outstanding Wgt. Avg. Exercise Price	$ 3.68	$ 3.96
Vested Wgt. Avg. Exercise Price	3.80	4.15
Nonvested Wgt. Avg. Exercise Price	3.53	$ 3.84
Issued Wgt. Avg. Exercise Price	3.08
Exercised Wgt. Avg. Exercise Price	0
Forfeited Wgt. Avg. Exercise Price	5.10
Expired Wgt. Avg. Exercise Price	$ 4.55
Outstanding Contractual Life, Beginning	7 years 3 months 29 days	7 years 2 months 23 days
Vested Contractual Life, Begining	6 years 7 months 28 days	5 years 7 months 24 days
Nonvested Contractual Life, Begining	8 years 1 month 6 days	8 years 2 months 12 days
Outstanding Contractual Life, Ending	7 years 3 months 29 days	7 years 3 months 29 days
Outstanding Grant Date Fair Value	$ 1.51	$ 1.51
Vested Grant Date Fair Value	1.55	1.55
Nonvested Grant Date Fair Value	1.49	$ 1.49
Issued Grant Date Fair Value	1.16
Exercised Grant Date Fair Value	0
Forfeited Grant Date Fair Value	1.37
Expired Grant Date Fair Value	1.06
Outstanding Grant Date Fair Value	1.41
Vested Grant Date Fair Value	1.44
Nonvested Grant Date Fair Value	$ 1.39
Outstanding Aggregate Intrinsic Value	$ 24,000,000
Vested Aggregate Intrinsic Value	24,000,000
Nonvested Aggregate Intrinsic Value	0
Issued Aggregate Intrinsic Value	0
Forfeited Aggregate Intrinsic Value	0
Exercised Aggregate Intrinsic Value	0
Outstanding Aggregate Intrinsic Value	4,500,000
Vested Aggregate Intrinsic Value	4,500,000
Nonvested Aggregate Intrinsic Value	$ 0