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Long-Term Debt (Detail Textuals 1) - Revolving credit facility - Option 2 - Eurodollar Borrowings
12 Months Ended
Dec. 31, 2015
Line of Credit Facility [Line Items]  
Description of reference rate basis Adjusted LIBOR
Minimum  
Line of Credit Facility [Line Items]  
Range of margin based on quarterly debt covenant calculation 1.125%
Maximum  
Line of Credit Facility [Line Items]  
Range of margin based on quarterly debt covenant calculation 2.125%