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Basis of Presentation and Significant Accounting Policies (Narrative) (Details) - USD ($)
6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Dec. 31, 2013
Significant Accounting Policies        
Shares issuable, excluding from calculation of diluted earnings per share 11,448,047 16,239,947    
Net gain (loss) attributable to cash flow hedge $ (59,000) $ (61,000)    
Notional Amount 1,050,000      
Impairment of goodwill 3,000,000      
Unrestricted cash 1,014,857 $ 1,304,656 $ 2,343,675 $ 1,977,031
Restricted cash 306,215   $ 355,793  
Available under a revolving credit line at packaging subsidiary $ 800,000      
Accounts Receivable [Member] | Major Customer 1        
Significant Accounting Policies        
Concentration of credit risk, percentage 14.00% 20.00%    
Revenue [Member] | Major Customer 1        
Significant Accounting Policies        
Concentration of credit risk, percentage 22.00% 30.00%