CONSOLIDATED BALANCE SHEETS (Parenthetical) - shares	Mar. 31, 2020	Dec. 31, 2019
Common stock, no par value per share:
Shares authorized (in shares)	20,000,000	20,000,000
Shares issued (in shares)	7,730,822	7,715,491
Shares outstanding (in shares)	7,730,822	7,715,491