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Financial Instruments and Fair Value Measurements (Details)
6 Months Ended
Jun. 30, 2018
USD ($)
Interest Rate Risk [Abstract]  
Interest rate swap, notional amount $ 14,725,000
Financial Receivable [Abstract]  
Interest rate swap 353,161
Total assets $ 353,161
LIBOR [Member]  
Interest Rate Risk [Abstract]  
Term of variable rate 3 months
LIBOR [Member] | Minimum [Member]  
Interest Rate Risk [Abstract]  
Debt instrument, variable interest rate 1.75%
LIBOR [Member] | Maximum [Member]  
Interest Rate Risk [Abstract]  
Debt instrument, variable interest rate 2.50%
Level 1 [Member]  
Financial Receivable [Abstract]  
Interest rate swap $ 0
Total assets 0
Level 2 [Member]  
Financial Receivable [Abstract]  
Interest rate swap 353,161
Total assets 353,161
Level 3 [Member]  
Financial Receivable [Abstract]  
Interest rate swap 0
Total assets $ 0