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Long-Term debt (Details Narrative)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
USD ($)
Dec. 31, 2016
Jun. 30, 2016
USD ($)
Jun. 30, 2017
USD ($)
Jun. 30, 2016
USD ($)
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 $ 232   $ 240 $ 602 $ 482    
First Tennessee bank Term Loan              
Credit Agreement term years 10     10      
Term loan facility $ 20,000     $ 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 2,266     2,266      
Borrowed under the revolver 5,733     5,733      
Available for borrowing 12,001     12,001      
Tangible net worth covenant 110,000     110,000      
Available to pay dividends or repurchase stock 76,600     $ 76,600      
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 622     $ 622      
Available for borrowing $ 19,378     $ 19,378      
Revolver interest over LIBOR       1.9%      
Commitment fee       0.10%