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Long-Term Debt, Interest Rate Swap and Finance Lease Obligations - Schedule of Long-term Debt (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Debt Instrument [Line Items]    
Long-term debt $ 74,143 $ 73,630
Plus finance lease obligations 676  
Less current portion (3,498) (12,449)
Long-term debt, excluding current maturities 71,502 62,109
Less deferred financing costs, net (865) (1,125)
Long-term debt and finance lease obligation, net 70,637 60,984
Loans Payable | Mortgage loan    
Debt Instrument [Line Items]    
Long-term debt 49,743 51,730
Loans Payable | Acquisition loan    
Debt Instrument [Line Items]    
Long-term debt 9,400 6,900
Revolving Credit Facility | Amended and restated credit agreement    
Debt Instrument [Line Items]    
Long-term debt 15,000  
Revolving Credit Facility | Affiliated revolver    
Debt Instrument [Line Items]    
Long-term debt 339  
Revolving Credit Facility | Line of Credit | Amended and restated credit agreement    
Debt Instrument [Line Items]    
Long-term debt 14,000 15,000
Revolving Credit Facility | Line of Credit | Affiliated revolver    
Debt Instrument [Line Items]    
Long-term debt 1,000 0
Equipment    
Debt Instrument [Line Items]    
Plus finance lease obligations $ 857 $ 928