XML 66 R55.htm IDEA: XBRL DOCUMENT v3.21.1
Long-Term Debt - Future maturities (Details) - USD ($)
Mar. 31, 2021
Dec. 31, 2020
Future maturities:    
2021 (remainder) $ 9,479,000  
2022 7,854,000  
2023 6,431,000  
2024 4,399,000  
2025 15,495,000  
Thereafter 19,329,000  
Long-term debt $ 62,987,000 $ 64,876,000