Note 10 - Debt - Component of Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
Principal	$ 70,911	$ 72,812
Carrying value	68,559	70,712
Notes Payable to Banks [Member]
Principal	52,601	55,692
Carrying value	52,115	55,042
Notes Payable to Banks [Member] \| KSX Bank Term Loans [Member]
Principal	34,653	36,135
Carrying value	34,242	35,551
Notes Payable to Banks [Member] \| KSX Revolver [Member]
Principal	2,169	2,053
Carrying value	2,169	2,053
Notes Payable to Banks [Member] \| Extended Warranty Term Loan and DDTL [Member]
Principal	14,779	15,504
Carrying value	14,704	15,438
Notes Payable to Banks [Member] \| Extended Warranty Revolver [Member]
Principal	1,000	2,000
Carrying value	1,000	2,000
Notes Payable, Other Payables [Member]
Principal	3,310	2,120
Carrying value	3,135	1,972
Notes Payable, Other Payables [Member] \| KSX Notes Payable [Member]
Principal	1,893	1,164
Carrying value	1,718	1,016
Notes Payable, Other Payables [Member] \| KSX Vehicle Loans [Member]
Principal	726	630
Carrying value	726	630
Notes Payable, Other Payables [Member] \| KSX Equipment Loans [Member]
Principal	691	326
Carrying value	691	326
Subordinated Debt [Member]
Principal	15,000	15,000
Carrying value	$ 13,309	$ 13,698