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Consolidated Statements of Financial Condition (Parentheticals) - $ / shares
Dec. 31, 2016
Dec. 31, 2015
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized (in shares) 25,000,000 25,000,000
Common stock, shares outstanding (in shares) 9,494,935 9,489,222