Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Consolidated Balance Sheets
Loans, allowance for loan losses (in dollars)	$ 4,776	$ 4,724
Common stock, no par value	$ 0	$ 0
Common stock, authorized shares	5,000,000	5,000,000
Common stock, issued shares	2,537,605	2,526,377
Common stock, outstanding shares	2,537,605	2,526,377