Note 13 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	Year December 31, 2021			Year December 31, 2020
Income Before Provision for Income Taxes	$	7,362,942		$	7,475,241
Statutory rate		21	%		21	%
Tax at statutory rate		1,546,218			1,569,801
State taxes, net of federal benefit		560,080			336,654
Permanent differences		(397,016	)		18,715
Return to Provision Adjustments		362			(289,316	)
Provision for income taxes	$	1,709,644		$	1,635,854

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	December 31, 2021			December 31, 2020
Inventories	$	190,588		$	179,171
Bad debts		5,549			5,009
Accrued liabilities		373,932			48,812
Prepaid expense		(210,244	)		(92,571	)
Depreciation and amortization		(3,638,314	)		(2,757,740	)
Research and development and other credit carryforwards		450,377			451,247
Right of use lease accounting		4,860			47,351
Directors stock option plan		185,201			161,212
Total deferred tax liability		(2,638,051	)		(1,957,509	)
Valuation allowance		(47,319	)		(47,319	)
Reserve for uncertain tax positions		(590,000	)		(425,000	)
Total reserves & allowances		(637,319	)		(472,319	)
Net deferred tax liability, net of reserves	$	(3,275,370	)	$	(2,429,828	)

Summary of Operating Loss Carryforwards [Table Text Block]

Tax Year Expires	State NOLs		R& D & Other Credits
2022		-		3,000
2023		-		3,000
2024		-		3,000
2025		-		3,000
2026		-		3,000
2027		-		3,000
2028		-		3,000
2029		191,519		3,000
2030		414,231		3,000
2031		641,229		3,000
2032		-		3,000
2033		532,837		3,000
2034		285,607		3,000
2035		-		-
2036		-		-
2037 and beyond		-		-
	$	2,065,423	$	39,000