Consolidated Statements Of Comprehensive Income (Unaudited) (USD $)	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Net income	$ 3,402,849	$ 2,231,484
Unrealized gains (losses) on securities available for sale:
Unrealized holding losses arising during the period before tax	(2,460,571)	(3,060,851)
Less reclassification adjustment for gains included in net income before tax		880,312
	(2,460,571)	(2,180,539)
Tax benefit	(943,336)	(834,985)
Other comprehensive loss, net of tax	(1,517,235)	(1,345,554)
Comprehensive income attributable to QCR Holdings, Inc.	$ 1,885,614	$ 885,930