CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Sep. 30, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Preferred stock, no par value (in dollars per share)
Preferred stock, shares authorized (in shares)	5,000,000	5,000,000
Preferred stock, shares issued (in shares)
Preferred stock, shares outstanding (in shares)
Common stock, no par value (in dollars per share)
Common stock, shares authorized (in shares)	20,000,000	20,000,000
Common stock, shares issued (in shares)	14,542,971	14,539,104
Common stock, shares outstanding (in shares)	14,542,971	14,539,104