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Consolidated Balance Sheets (Unaudited) (Parentheticals) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Statement of Financial Position [Abstract]    
Total debt securities $ 124,599 $ 122,678
Equity securities, amortized cost $ 9,594 $ 9,559
Common stock, shares authorized (in shares) 100,000,000 100,000,000
Common stock, shares issued (in shares) 8,353,051 8,478,202
Common stock, shares outstanding (in shares) 8,353,051 8,478,202