CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Sep. 30, 2015	Dec. 31, 2014
SHAREHOLDERS' EQUITY:
Preferred shares, no par value (in dollars per share)
Preferred shares, shares authorized (in shares)	1,000,000	1,000,000
Preferred shares, shares outstanding (in shares)	0	0
Common shares, no par value (in dollars per share)
Common shares, shares authorized (in shares)	12,000,000	12,000,000
Common shares, shares issued (in shares)	10,650,531	10,064,945
Treasury shares (in shares)	753,627	753,627