XML 93 R81.htm IDEA: XBRL DOCUMENT v3.10.0.1
6) Earnings Per Share (Details) - $ / shares
6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Details    
Antidilutive Securities Excluded from Computation of Net Income, Per Outstanding Unit, Amount $ 589,822 $ 330,225