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Statements of Changes in Stockholders' Equity (Unaudited) - USD ($)
Retained Earnings [Member]
Common Stock [Member]
Total
Balance at Dec. 31, 2016 $ 13,927,613 $ 59,335 $ 13,986,948
Net income 258,100 258,100
Dividends declared (194,250) (194,250)
Balance at Jun. 30, 2017 13,991,463 59,335 14,050,798
Balance at Dec. 31, 2017 14,256,226 59,335 14,315,561
Net income 989,065 989,065
Dividends declared (233,099) (233,099)
Balance at Jun. 30, 2018 $ 15,012,192 $ 59,335 $ 15,071,527