Accrued Expenses and Other Current Liabilities  | 
12 Months Ended | 
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Dec. 31, 2015  | |
| Accrued Expenses and Other Liabilities [Abstract] | |
| Accrued Expenses and Other Liabilities | 
 (8) Accrued Expenses and Other Current Liabilities 
Accrued expenses and other current liabilities consist primarily of accrued compensation and benefits of approximately $19.2 million and $16.7 million as of December 31, 2015 and 2014, respectively.  The accrued compensation and benefits amounts include bonus, salaries and related payroll taxes, vacation and deferred compensation. 
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- Definition The entire disclosure for accounts payable and accrued liabilities at the end of the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- References No definition available. 
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