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Long-Term Debt (Detail Textuals) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Debt Disclosure [Abstract]    
Principal maturities of long-term debt for 2019 $ 723,000  
Principal maturities of long-term debt for 2020 723,000  
Principal maturities of long-term debt for 2021 1,509,000  
Principal maturities of long-term debt for 2022 165,000  
Principal maturities of long-term debt for 2023 13,000  
Line of credit $ 2,000,000 $ 2,000,000
Description of rate basis Libor  
Interest rate 1.40%  
Lease line of credit $ 1,000,000  
lease term for equipment covered by lease line of credit 60 months