XML 39 R28.htm IDEA: XBRL DOCUMENT v3.5.0.2
Significant Accounting Policies, Trade Accounts Receivable and Allowance for Doubtful Accounts (Details) - USD ($)
Sep. 30, 2016
Dec. 31, 2015
Receivables [Abstract]    
Allowance for doubtful accounts $ 8,000 $ 6,000