Note 10 - Debt - Component of Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Principal	$ 69,632	$ 72,812
Carrying value	67,290	70,712
Notes Payable to Banks [Member]
Principal	51,231	55,692
Carrying value	50,646	55,042
Notes Payable to Banks [Member] \| KSX Bank Term Loans [Member]
Principal	34,323	36,135
Carrying value	33,794	35,551
Notes Payable to Banks [Member] \| KSX Revolver [Member]
Principal	2,229	2,053
Carrying value	2,229	2,053
Notes Payable to Banks [Member] \| Extended Warranty Term Loan and DDTL [Member]
Principal	10,929	15,504
Carrying value	10,873	15,438
Notes Payable to Banks [Member] \| Extended Warranty Revolver [Member]
Principal	3,750	2,000
Carrying value	3,750	2,000
Notes Payable, Other Payables [Member]
Principal	3,401	2,120
Carrying value	3,216	1,972
Notes Payable, Other Payables [Member] \| KSX Notes Payable [Member]
Principal	1,967	1,164
Carrying value	1,782	1,016
Notes Payable, Other Payables [Member] \| KSX Vehicle Loans [Member]
Principal	719	630
Carrying value	719	630
Notes Payable, Other Payables [Member] \| KSX Equipment Loans [Member]
Principal	715	326
Carrying value	715	326
Subordinated Debt [Member]
Principal	15,000	15,000
Carrying value	$ 13,428	$ 13,698