Annual report pursuant to Section 13 and 15(d)

Statements of Net Proceeds From All Sources (Equity) (Parentheticals)

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Statements of Net Proceeds From All Sources (Equity) (Parentheticals) - USD ($)
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
AOCI Attributable to Parent [Member]      
Periodic pension costs, income taxes $ 55,940 $ (405,739) $ 184,304
Net Proceeds From All Sources [Member]      
Dividends paid - per Sub-share (in dollars per share) $ 0.29 $ 0.27 $ 0