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Note 8 - Bank Debt and Notes Payable (Details Textual) - USD ($)					12 Months Ended
	Sep. 30, 2022	Mar. 02, 2021	Jul. 05, 2018	Jul. 01, 2018	Dec. 31, 2022	Dec. 31, 2021	Jan. 15, 2021	Jan. 14, 2021	Jul. 01, 2016
Payments to Acquire Businesses, Gross					$ 4,331,739	$ 6,138,102
CAD Enterprises, Inc. [Member]
Business Combination, Consideration Transferred, Total				$ 21,000,000
Payments to Acquire Businesses, Gross				$ 12,000,000
Seller Note [Member] \| CAD Enterprises, Inc. [Member]
Debt Instrument, Interest Rate, Stated Percentage				4.00%
Repayments of Debt	$ 600,000
Notes Payable [Member]
Long-term Debt, Total					3,150,377
Notes Payable, Total					3,150,377	7,222,262
Notes Payable [Member] \| Related Party Notes [Member]
Long-term Debt, Total					2,587,877
Notes Payable [Member] \| Seller Note [Member]
Long-term Debt, Total					562,500
Debt Instrument, Face Amount					9,000,000	9,000,000
Notes Payable, Total					562,500	3,937,500
J P Morgan Chase Bank [Member] \| Term Debt [Member]
Long-term Debt, Total		$ 6,000,000
J P Morgan Chase Bank [Member] \| Term Debt [Member] \| Prime Rate [Member]
Debt Instrument, Basis Spread on Variable Rate		0.25%
J P Morgan Chase Bank [Member] \| Term Debt [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate		2.25%
J P Morgan Chase Bank [Member] \| Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity		$ 30,000,000
Line of Credit Facility, Commitment Fee Percentage		0.25%
Line of Credit Facility, Remaining Borrowing Capacity					10,700,000	13,700,000
J P Morgan Chase Bank [Member] \| Revolving Credit Facility [Member] \| Prime Rate [Member]
Debt Instrument, Basis Spread on Variable Rate		0.25%
J P Morgan Chase Bank [Member] \| Revolving Credit Facility [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate		1.75%
J P Morgan Chase Bank [Member] \| Letter of Credit [Member]
Line of Credit Facility, Maximum Borrowing Capacity		$ 3,000,000
First Francis [Member] \| Related Party Notes, One [Member] \| Related Party Notes, One [Member]
Debt Instrument, Face Amount									$ 2,000,000
First Francis [Member] \| Related Party Notes, Two [Member] \| Related Party Notes, One [Member]
Debt Instrument, Face Amount									$ 2,768,662
First Francis [Member] \| Notes Payable [Member] \| Related Party Notes [Member]
Debt Instrument, Interest Rate, Stated Percentage			6.25%
Line of Credit Facility, Interest Rate During Period			4.00%
Notes Payable, Total								$ 2,077,384
First Francis [Member] \| Notes Payable [Member] \| Related Party Notes [Member] \| Komtek Forge [Member]
Notes Payable, Total								$ 1,702,400
First Francis [Member] \| Notes Payable [Member] \| Related Party Notes Three [Member]
Debt Instrument, Face Amount					3,779,784	3,779,784
Debt Instrument, Interest Rate, Stated Percentage							6.25%
Notes Payable, Total					$ 2,587,877	$ 3,284,762	$ 3,779,784