Note 10 - FHLB Advances (Tables)

12 Months Ended

Dec. 31, 2017

Notes Tables

Schedule of Long-term Debt Instruments [Table Text Block]

	December 31, 2017					December 31, 2016
			Weighted					Weighted
			Average					Average
			Interest Rate					Interest Rate
	Amount Due		at Year-End			Amount Due		at Year-End
Maturity:
Year ending December 31:
2017	$	-		-		$	112,500,000		0.78	%
2018		190,400,000		1.82			25,000,000		3.35
2020		1,600,000		1.75			-		-
Total FHLB advances	$	192,000,000		1.82	%	$	137,500,000		1.25	%

Schedule of Prepayments of Federal Home Loan Bank Advances [Table Text Block]

2016
Date of Restructuring	Amount		Weighted Average Interest Rate			Range of Maturity Dates	Prepayment Fees
First Quarter of 2016	$	10,000,000		3.86	%	December 2017	$	524,197
Third Quarter of 2016		5,000,000		2.84	%	February 2018		127,310
Fourth Quarter of 2016		15,000,000		3.14	%	September 2017 to November 2017		357,161
Total for 2016	$	30,000,000		3.33	%		$	1,008,668