XML 75 R59.htm IDEA: XBRL DOCUMENT v3.25.4
INCOME TAXES - Reconciliation between the federal statutory rate and effective tax rate (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
INCOME TAXES      
Federal statutory rate $ 3,311 $ 4,440 $ 10,933
State income taxes, net of federal benefit $ 241 $ 314 $ 694
Effective Income Tax Rate Reconciliation, State and Local Jurisdiction, Contribution Greater than 50 Percent, Tax Effect [Extensible Enumeration] FLORIDA, NORTH CAROLINA FLORIDA, NORTH CAROLINA FLORIDA, NORTH CAROLINA
Research and development credit $ (177) $ (110) $ (652)
Investment tax credit   (1,003)  
Change in unrecognized tax benefits (69) 49 241
Non-deductible expenses:      
Long-term retirement plan 988    
Other (184) (162) (137)
Cross-border tax laws   (71) (243)
Other 272 (168) (469)
Total income tax provision $ 4,382 $ 3,289 $ 10,367
Tax Jurisdiction of Domicile [Extensible Enumeration] UNITED STATES UNITED STATES UNITED STATES
Federal statutory rate (in percentage) 21.00% 21.00% 21.00%
State income taxes, net of federal benefit (in percentage) 1.50% 1.50% 1.30%
Research and development credit (in percentage) (1.10%) (0.50%) (1.30%)
Investment tax credit (in percentage)   (4.70%)  
Change in unrecognized tax benefits (in percentage) (0.40%) 0.20% 0.50%
Non-deductible expenses:      
Long-term retirement plan (in percentage) 6.30%    
Other (in percentage) (1.20%) (0.80%) (0.30%)
Cross-border tax laws (in percentage)   (0.30%) (0.50%)
Other (in percentage) 1.70% (0.80%) (0.80%)
Effective tax rate (in percentage) 27.80% 15.60% 19.90%