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STOCKHOLDERS' EQUITY	12 Months Ended
STOCKHOLDERS' EQUITY	Dec. 31, 2017
STOCKHOLDERS' EQUITY [Abstract]
STOCKHOLDERS' EQUITY	Note 9, Stockholders' Equity: Common Stock has a preferential dividend rate of at least 105% of the dividend paid on Class A Common Stock. Class A Common Stock has greater voting rights which include: voting as a separate class for the election of 75% of the total number of directors and on all other matters subject to shareholder vote, each share of Class A Common Stock has ten votes and votes with the Common Stock as a single class. Class A Common Stock is convertible at the holder's option at any time into Common Stock on a 1-for-1 basis; Common Stock is not convertible into Class A Common Stock. A special cash dividend of $1.00 for Common Stock and $0.95 for Class A Common Stock was paid in the fourth quarter of 2016. Aggregate dividends paid on Common Stock was $10,473,000, $27,674,000 and $7,358,000 in 2017, 2016 and 2015, respectively. Aggregate dividends paid on Class A Common Stock was $919,000, $2,735,000 and $702,000 in 2017, 2016 and 2015, respectively.