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Shareholders' Equity and Debt (Debt) (Details) (USD $)
 1 Months Ended
Mar. 31, 2014
Credit Facility, Line of Credit
Aug. 31, 2011
Credit Facility, Fifth Amended and Restated Loan Agreement, the Agreement, August 2011
Aug. 31, 2011
Credit Facility, Fifth Amended and Restated Loan Agreement, the Agreement, August 2011
Credit Facility, Line of Credit
Line of Credit Facility [Line Items]      
Line of credit, maximum borrowing capacity     $ 10,000,000
Line of credit, maximum borrowing capacity upon satisfaction of certain conditions     20,000,000
Interest rate of line of credit 2.15%    
Line of credit, unused capacity, commitment fee percentage   0.25%  
Line of credit, covenant terms, agreement termination trigger, cross default on outstanding principle   $ 500,000