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CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - $ / shares
Jun. 30, 2019
Dec. 31, 2018
Statement of Financial Position [Abstract]    
Preferred stock, authorized 100,000 100,000
Common stock, par value (in dollars per share) $ 0 $ 0
Common stock, authorized 7,000,000 7,000,000
Common stock, outstanding 3,632,917 3,616,483