XML 56 R43.htm IDEA: XBRL DOCUMENT v3.3.1.900
Summary of Significant Accounting Policies (Details) - Summary of the allowance for uncollectible accounts - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Summary of the allowance for uncollectible accounts [Abstract]    
Balance at beginning of year $ 168 $ 86
Provisions 437 841
Deductions (46) (759)
Balance at end of year $ 559 $ 168