Note 16 - Earnings Per Common Share (Details) - Earnings Per Share - Basic and Diluted (USD $)	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Earnings Per Share - Basic and Diluted [Abstract]
Net income	$ 14,938,245		$ 13,106,240		$ 10,129,869
Less: Net income attributable to noncontrolling interests			488,473		438,221
Net income attributable to QCR Holdings, Inc.	14,938,245		12,617,767		9,691,648
Less: Preferred stock dividends and discount accretion	3,168,302		3,496,085		5,283,885	[1]
Net income attributable to QCR Holdings, Inc. common stockholders	$ 11,769,943		$ 9,121,682		$ 4,407,763
Earnings per common share attributable to QCR Holdings, Inc. common stockholders
Basic (in Dollars per share)	$ 2.13		$ 1.88		$ 0.93
Diluted (in Dollars per share)	$ 2.08		$ 1.85		$ 0.92
Weighted average common shares outstanding (in Shares)	5,531,948		4,844,776		4,724,781
Weighted average common shares issuable upon exercise of stock options and under the employee stock purchase plan ** (in Shares)	114,978	[2]	74,783	[2]	64,245	[2]
Weighted average common and common equivalent shares outstanding (in Shares)	5,646,926		4,919,559		4,789,026

[1] For the year ended December 31, 2011, includes approximately $1.2 million of accelerated accretion of discount on the redemption of Series D Preferred Stock during the third quarter of 2011. See Note 11 for additional information.

[2] Excludes anti-dilutive shares of 116,324, 158,375, and 546,521 at December 31, 2013, 2012 and 2011, respectively.