Condensed Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (Parentheticals) - shares	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Common stock issued through DRIP (in shares)	10,223
Common stock issued to ESOP (in shares)	7,294	15,118

Number of shares of capital stock issued (purchased by employees) in connection with an employee stock ownership plan.

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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration