Emclaire Financial Corp. - Condensed Financial Statements, Parent Corporation Only (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Jun. 30, 2012	Dec. 31, 2011	Dec. 31, 2010
Assets
Cash and cash equivalents	$ 20,424		$ 28,193	$ 19,027
Securities available for sale	120,206		123,154
Total Assets	509,014		491,882
Liabilities and Stockholders' Equity
Accrued expenses and other liabilities	4,388		4,143
Stockholders' Equity	51,725		50,730	39,118
Total Liabilities and Stockholders' Equity	509,014		491,882
Parent Company [Member]
Assets
Cash and cash equivalents	38	38	87	55
Securities available for sale	2,301		2,644
Equity in net assets of subsidiaries	50,299		48,625
Other assets	500		515
Total Assets	53,138		51,871
Liabilities and Stockholders' Equity
Short-term borrowed funds with affiliated subsidiary bank	1,375		1,100
Accrued expenses and other liabilities	38		41
Stockholders' Equity	51,725		50,730
Total Liabilities and Stockholders' Equity	$ 53,138		$ 51,871