Consolidated Statements of Comprehensive Income (Loss) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Net income	$ 16,927,881	$ 14,952,537	$ 14,938,245
Unrealized gains (losses) on securities available for sale:
Unrealized holding gains (losses) arising during the period before tax	1,144,314	19,697,118	(29,292,079)
Less reclassification adjustment for gains included in net income before tax	798,983	92,363	432,492
	345,331	19,604,755	(29,724,571)
Unrealized losses on interest rate cap derivatives:
Unrealized holding losses arising during the period before tax	(631,363)	(584,264)
Less reclassification adjustment for ineffectiveness and caplet amortization before tax	(15,895)	30,147
	(615,468)	(614,411)
Other comprehensive income (loss), before tax	(270,137)	18,990,344	(29,724,571)
Tax expense (benefit)	(81,524)	7,281,574	(11,373,902)
Other comprehensive income (loss), net of tax	(188,613)	11,708,770	(18,350,669)
Comprehensive income (loss) attributable to QCR Holdings, Inc.	$ 16,739,268	$ 26,661,307	$ (3,412,424)