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Federal Home Loan Bank Advances and Other Borrowings (Details Textual)
12 Months Ended
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Aug. 28, 2015
USD ($)
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]      
Long-term debt, description Pursuant to the Loan Agreement, the Bank may not permit non-performing assets to be greater than 3.25% of total assets. The Bank must not permit its Texas ratio (nonperforming assets divided by the sum of tangible equity plus the allowance for loan and lease losses) to be greater than 35.00%, and must not permit its liquidity ratio to be less than 9.00% (or less than 10.00% for two consecutive quarters).    
Long-term line of credit $ 0 $ 2,000,000  
Interest rate at period end (as a percent)   3.50%  
Carrying value of securities pledged to Federal Home Loan Bank 14,844,441 $ 23,853,366  
Federal Home Loan Bank borrowings, fair value 5,765 $ 187,462  
Federal funds purchased 13,499,625    
Fiscal quarter 2017 [Member]      
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]      
Amortization 125,000    
Fiscal quarter 2018 [Member]      
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]      
Amortization 190,000    
Fiscal quarter 2019 [Member]      
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]      
Amortization 210,000    
Fiscal quarter 2020 [Member]      
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]      
Amortization $ 210,000    
Long Term Advance Dated January 20, 2006 Fixed Interest at 4.18 [Member]      
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]      
Federal Home Loan Bank, advances, interest rate (as a percent)   4.18%  
Long-term advance Dated January 10, 2007,Fixed Interest at 4.25, [Member]      
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]      
Federal Home Loan Bank, advances, interest rate (as a percent) 4.25%    
Short Term Advance Dated January 28 2015 Fixed Interest At 0.63 [Member]      
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]      
Federal Home Loan Bank, advances, interest rate (as a percent)   0.63%  
Short Term Advance Dated January 28 2015 Fixed Interest At 0.43 [Member]      
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]      
Federal Home Loan Bank, advances, interest rate (as a percent)   0.43%  
Short-term advance Dated August 31, 2015,fixed Interest At 0.41 [Member]      
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]      
Federal Home Loan Bank, advances, interest rate (as a percent)   0.41%  
Federal Home Loan Bank Advances [Member]      
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]      
Line of credit facility, maximum borrowing capacity $ 52,550,939    
Prime Rate [Member]      
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]      
Interest rate description During the first 90 days of the revolving line of credit or at any time during which the Bank maintains daily settlement accounts at the Lender, borrowings accrue interest at the Lender’s prime rate, subject to a 3.00% floor.    
Revolving Credit Facility [Member]      
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]      
Line of credit facility, maximum borrowing capacity     $ 8,000,000
Covenant compliance, ratio of non-performing assets as a percentage total assets, not to be greater than 3.25%    
Covenant compliance, Texas ratio, not to be greater than (as a percent) 35.00%    
Covenant compliance, liquidity ratio, not to be less than (as a percent) 9.00%    
Covenant compliance, liquidity ratio in consecutive quarters, not to be less than (as a percent) 10.00%    
Covenant compliance, debt service coverage ratio, not to be less than 1.25    
Covenant compliance, interest coverage ratio, not to be less than 2.50    
Revolving Credit Facility [Member] | Prime Rate [Member]      
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]      
Initial line of credit period 90 days    
Variable rate, floor (as a percent) 3.00%