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Condensed Income Statement (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Condensed Income Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other expenses |  |  |  |  |  |  |  |  |  |  |  |  | $ (10,930,497) | $ (11,412,259) | $ (11,113,244)
Income before income tax benefit and equity in undistributed net income of subsidiaries | $ 552 | $ (169) | $ 786 | $ 429 | $ 521 | $ 637 | $ 498 | $ 567 | $ 814 | $ 1,039 | $ 788 | $ 607 | 1,597,537 | 2,223,178 | 3,248,032
Income tax benefit |  |  |  |  |  |  |  |  |  |  |  |  | 244,921 | 308,652 | 633,855
Net income | $ 447 | $ 8 | $ 518 | $ 380 | $ 480 | $ 526 | $ 435 | $ 473 | $ 650 | $ 795 | $ 640 | $ 529 | 1,352,616 | 1,914,526 | 2,614,177
Parent Company |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Condensed Income Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends and distributions from subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  | 678,000 | 980,000 | 980,000
Other expenses |  |  |  |  |  |  |  |  |  |  |  |  | (86,843) | (77,375) | (76,005)
Income before income tax benefit and equity in undistributed net income of subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  | 591,157 | 902,625 | 903,995
Income tax benefit |  |  |  |  |  |  |  |  |  |  |  |  | 31,958 | 28,136 | 27,970
Change in undistributed equity of subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  | 729,501 | 983,765 | 1,682,212
Net income |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,352,616 | $ 1,914,526 | $ 2,614,177

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