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