Consolidated Balance Sheets (Parenthenticals) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Statement Of Financial Position [Abstract]
Fair value securities held to maturity (in dollars)	$ 9,804	$ 13,222
Preferred stock - no par value (in dollars per share)	$ 0	$ 0
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock - par value (in dollars per share)	$ 0.10	$ 0.10
Common stock, shares authorized	10,000,000	10,000,000
Common stock, shares issued	1,785,000	1,785,000
Common stock, shares outstanding	1,779,472	1,779,472
Treasury stock, shares	5,528	5,528