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Note 14 - Subsequent Event (Details Textual) - USD ($)
Aug. 07, 2019
Aug. 09, 2019
Jun. 30, 2019
Dec. 31, 2018
Notes Payable, Total     $ 5,000,000 $ 5,000,000
Existing Note Payable [Member]        
Notes Payable, Total     $ 5,000,000  
Subsequent Event [Member] | Operating Line of Credit [Member]        
Line of Credit Facility, Maximum Borrowing Capacity $ 3,000,000      
Long-term Line of Credit, Total   $ 0    
Subsequent Event [Member] | London Interbank Offered Rate (LIBOR) [Member] | Operating Line of Credit [Member]        
Debt Instrument, Basis Spread on Variable Rate 2.50%      
Subsequent Event [Member] | Hometown Bancshares Capital Trust Floating Rate Junior Subordinated Debentures [Member]        
Repayments of Debt $ 6,186,000      
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed 100.00%      
Subsequent Event [Member] | Existing Note Payable [Member]        
Notes Payable, Total $ 11,200,000      
Subsequent Event [Member] | Existing Note Payable [Member] | London Interbank Offered Rate (LIBOR) [Member]        
Debt Instrument, Basis Spread on Variable Rate 2.50%