Income taxes (Tables)

12 Months Ended

Dec. 31, 2022

Income taxes [Abstract]

Schedule of difference between the expected federal income tax

Noncurrent deferred tax assets (liabilities):	2022			2021
Deferred Tax Assets
Accrued Compensation	$	1,999,477		$	1,895,848
Fixed Assets and intangibles		(162,853	)		(114,167	)
Net Operating Loss Carryforwards and Credits		13,457,207			15,070,176
Total Deferred Tax Assets	$	15,293,832		$	16,851,857
Valuation Allowance		(15,293,832	)		(16,851,857	)
Net deferred tax / (liabilities)	$	-		$	-

Schedule of tax effects of temporary differences

	2022					2021
Taxes calculated at federal rate	$	(1,212,045	)	21.0	%	$	(1,139,345	)	21.0	%
State income tax, net of federal benefit		(202,970	)	3.5	%		(195,688	)	3.6	%
Change in Valuation Allowance		(1,558,025	)	27.0	%		1,163,011		-21.4	%
Expiration of tax attributes		2,973,040		-51.5	%		139,331		-2.6	%
Prior period adjustment		-		0.0	%		48,152		-0.9	%
Permanent Items		-		0.0	%		(15,460	)	0.3	%
Provision (benefit) for taxes	$	-		0.0	%	$	-		0.0	%

Schedule of unrecognized tax benefits attributable to losses and minimum tax credit carryforwards

Balance at December 31, 2020	$	9,635,824
Additions related to prior year tax provisions		-
Additions related to current year tax provisions		-
Reductions related to prior year tax positions and settlements		-
Balance at December 31, 2021	$	9,635,824
Additions related to prior year tax provisions		-
Additions related to current year tax provisions		-
Reductions related to prior year tax positions and settlements		-
Balance at December 31, 2022	$	9,635,824