Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt (Details)

v2.4.0.8
Long-Term Debt (Details) (USD $)
3 Months Ended
Mar. 31, 2014
Dec. 31, 2013
Jun. 30, 2011
Long-term debt      
Less current maturities $ 971,000 $ 971,000  
Long-term debt, less current maturities 109,780,000 110,023,000  
Interest Rate Swap [Member]
     
Long-term debt, additional disclosure      
Notional amount 50,000,000    
Fixed interest rate on derivative (as a percent) 6.335%    
Variable rate basis LIBOR    
Interest rate added to variable rate (as a percent) 4.25%    
LIBOR floor (as a percent) 1.50%    
Line of Credit [Member] | Secured Debt [Member]
     
Long-term debt      
Total long-term debt 110,751,000 110,994,000  
Less current maturities 971,000 971,000  
Long-term debt, less current maturities 109,780,000 110,023,000  
Unamortized discount on issuance of debt 721,000 766,000 1,250,000
Long-term debt, additional disclosure      
Borrowings under senior credit facility 125,000,000    
Percentage of net cash proceeds of certain asset sales, certain insurance or condemnation events, requirement for additional principal prepayments 100.00%    
Period before end of the fiscal year, for additional principal prepayments of debt, from excess cash flow 150 days    
Percentage of excess cash flow paid as additional principal prepayments 50.00%    
Reduced percentage of excess cash flow paid as additional principal prepayments upon achievement of certain leverage ratio thresholds, one 25.00%    
Reduced percentage of excess cash flow paid as additional principal prepayments upon achievement of certain leverage ratio thresholds, two 0.00%    
Line of Credit [Member] | Secured Debt [Member] | Interest Rate Swap [Member]
     
Long-term debt, additional disclosure      
Length of time after closing date for entering into a hedge 90 days    
Notional amount 50,000,000    
Negative fair value included in other long-term liabilities 212,000    
Number of financial institutions for which the entity is exposed to counterparty credit risk 1    
Fixed interest rate on derivative (as a percent) 6.335%    
Variable rate basis LIBOR    
Interest rate added to variable rate (as a percent) 4.25%    
LIBOR floor (as a percent) 1.50%    
Line of Credit [Member] | Secured Debt [Member] | Minimum [Member] | Interest Rate Swap [Member]
     
Long-term debt, additional disclosure      
Percentage of aggregate outstanding principal amount of debt hedged 25.00%    
Line of Credit [Member] | Secured Debt [Member] | Debt Instrument, Interest Rate Option One [Member]
     
Long-term debt, additional disclosure      
Additional fixed interest rate spread (as a percent) 3.25%    
Line of Credit [Member] | Secured Debt [Member] | Debt Instrument, Interest Rate Option One [Member] | Prime Rate [Member]
     
Long-term debt, additional disclosure      
Variable rate basis Prime Rate    
Line of Credit [Member] | Secured Debt [Member] | Debt Instrument, Interest Rate Option One [Member] | Federal Funds Rate [Member]
     
Long-term debt, additional disclosure      
Variable rate basis Federal funds    
Interest rate added to variable rate (as a percent) 0.50%    
Line of Credit [Member] | Secured Debt [Member] | Debt Instrument, Interest Rate Option One [Member] | One Month Adjusted London Interbank Offered Rate [Member]
     
Long-term debt, additional disclosure      
Variable rate basis London Interbank Offered Rate for a one month interest period    
Line of Credit [Member] | Secured Debt [Member] | Debt Instrument, Interest Rate Option One [Member] | Fixed Rate [Member]
     
Long-term debt, additional disclosure      
Additional interest margin added to fixed and variable rates (as a percent) 1.00%    
Fixed interest rate base (as a percent) 1.50%    
Line of Credit [Member] | Secured Debt [Member] | Debt Instrument, Interest Rate Option Two [Member]
     
Long-term debt, additional disclosure      
Additional fixed interest rate spread (as a percent) 4.25%    
Line of Credit [Member] | Secured Debt [Member] | Debt Instrument, Interest Rate Option Two [Member] | Fixed Rate [Member]
     
Long-term debt, additional disclosure      
Additional interest margin added to fixed and variable rates (as a percent) 1.50%    
Line of Credit [Member] | Revolving Credit Facility [Member]
     
Long-term debt, additional disclosure      
Borrowings under senior credit facility 80,000,000    
Remaining borrowing availability 38,923,000    
Fixed charge coverage ratio to be maintained if certain minimum availability under the credit facility is not maintained. 1.0    
Outstanding borrowings 0    
Line of Credit [Member] | Revolving Credit Facility [Member] | Maximum [Member]
     
Long-term debt, additional disclosure      
Annual acquisitions allowed $ 10,000,000    
Line of Credit [Member] | Revolving Credit Facility [Member] | Debt Instrument, Interest Rate Option One [Member]
     
Long-term debt, additional disclosure      
Additional fixed interest rate spread (as a percent) 1.75%    
Line of Credit [Member] | Revolving Credit Facility [Member] | Debt Instrument, Interest Rate Option One [Member] | London Interbank Offered Rate [Member]
     
Long-term debt, additional disclosure      
Variable rate basis London Interbank Offered Rate    
Line of Credit [Member] | Revolving Credit Facility [Member] | Debt Instrument, Interest Rate Option Two [Member]
     
Long-term debt, additional disclosure      
Additional fixed interest rate spread (as a percent) 1.25%    
Line of Credit [Member] | Revolving Credit Facility [Member] | Debt Instrument, Interest Rate Option Two [Member] | Prime Rate [Member]
     
Long-term debt, additional disclosure      
Variable rate basis Prime Rate    
Line of Credit [Member] | Revolving Credit Facility [Member] | Debt Instrument, Interest Rate Option Two [Member] | Federal Funds Rate [Member]
     
Long-term debt, additional disclosure      
Variable rate basis Federal funds    
Interest rate added to variable rate (as a percent) 0.50%    
Line of Credit [Member] | Revolving Credit Facility [Member] | Debt Instrument, Interest Rate Option Two [Member] | One Month Adjusted London Interbank Offered Rate [Member]
     
Long-term debt, additional disclosure      
Variable rate basis London Interbank Offered Rate    
Interest rate added to variable rate (as a percent) 1.00%