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Long-Term debt (Details Narrative)
$ in Thousands
3 Months Ended
Mar. 31, 2017
USD ($)
Dec. 31, 2016
Mar. 31, 2016
USD ($)
Jul. 24, 2015
USD ($)
Jan. 30, 2015
USD ($)
Mortgage interest description 5.6% to 7.9% mortgage notes due in installments through 2027 5.6% to 7.9% mortgage notes due in installments through 2027      
Capitalized interest $ 370   $ 242    
First Tennessee bank Term Loan          
Credit Agreement term years 10        
Term loan facility $ 20,000        
Wells Fargo Bank, N.A.          
Credit Agreement term years         5
Revolving Credit Agreement         $ 20,000
Sublimit for standby letters of credit         $ 10,000
Letters of credit issued 2,263        
Borrowed under the revolver 5,799        
Available for borrowing 11,938        
Tangible net worth covenant 110,000        
Available to pay dividends or repurchase stock $ 75,500        
Revolver interest over LIBOR 1.4%        
Commitment fee 0.15%        
First Tennessee Bank          
Credit Agreement term years       5  
Revolving Credit Agreement       $ 20,000  
Revolver conversion to term loan 24 month window        
Borrowed under the revolver $ 966        
Available for borrowing $ 19,034        
Revolver interest over LIBOR 1.9%        
Commitment fee 0.10%