Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Net Proceeds From All Sources (Parentheticals)

v3.8.0.1
Consolidated Statements of Net Proceeds From All Sources (Parentheticals) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
AOCI Attributable to Parent [Member]      
Periodic pension costs, income taxes $ 84 $ 156 $ 56
Net Proceeds From All Sources [Member]      
Dividends paid - per Sub-share (in dollars per share) $ 0.35 $ 0.31 $ 0.29
Special dividends paid per Sub-share Certificate (in dollars per share) 1    
Dividends paid - per Sub-share (in dollars per share) 0.35    
Special dividends paid per Sub-share Certificate (in dollars per share) $ 1