Quarterly report pursuant to Section 13 or 15(d)

LONG-TERM DEBT AND CAPITAL LEASE - Interest Rate Cap Agreement Narrative (Details)

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LONG-TERM DEBT AND CAPITAL LEASE - Interest Rate Cap Agreement Narrative (Details) - USD ($)
1 Months Ended 6 Months Ended
Apr. 30, 2018
Jun. 30, 2018
Jun. 30, 2017
Derivatives, Fair Value [Line Items]      
Payment for interest rate cap $ 238,000 $ 238,000 $ 0
Notional amount $ 50,000,000    
Cap interest rate 3.00%    
Derivative term 3 months    
Deposits And Other      
Derivatives, Fair Value [Line Items]      
Fair value of interest rate cap   $ 236,877