Quarterly report pursuant to Section 13 or 15(d)

Line of Credit, Short-Term and Long-Term Borrowings (Details)

v2.4.0.6
Line of Credit, Short-Term and Long-Term Borrowings (Details) (USD $)
Jun. 30, 2012
Dec. 31, 2011
Long-term debt    
Long-term debt $ 81,514,000 $ 86,590,000
Less current installments 10,229,000 10,059,000
Total long-term debt 71,285,000 76,531,000
Line of Credit Short-Term and Long-Term Borrowings (Additional Textual) [Abstract]    
Outstanding letters of credit 4,100,000  
Short-term borrowings 60,238,000 50,413,000
Note payable to bank one [Member]
    
Long-term debt    
Long-term debt 31,658,000 34,259,000
Line of Credit Short-Term and Long-Term Borrowings (Textual) [Abstract]    
Monthly repayment installment of note payable 531,400  
Fixed interest rate of note payable 3.54%  
Balloon payment required under note payable 12,635  
Note payable to bank two [Member]
    
Long-term debt    
Long-term debt 31,628,000 34,005,000
Line of Credit Short-Term and Long-Term Borrowings (Textual) [Abstract]    
Monthly repayment installment of note payable 483,900  
Fixed interest rate of note payable 3.19%  
Balloon payment required under note payable 11,670  
Loan From HF Logistics [Member]
    
Long-term debt    
Long-term debt 18,210,000 18,297,000
Capital lease obligations [Member]
    
Long-term debt    
Long-term debt $ 18,000 $ 29,000