Consolidated Statements of Income (Loss) (Unaudited) - USD ($)		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Interest and dividend income:
Loans/leases, including fees		$ 18,245,724	$ 16,868,806	$ 36,250,243	$ 33,644,396
Securities:
Taxable		1,735,495	2,573,649	3,678,260	5,156,443
Nontaxable		1,890,320	1,448,415	3,620,888	2,902,471
Interest-bearing deposits at financial institutions		64,665	71,243	141,719	161,770
Restricted investment securities		108,161	139,570	250,479	268,495
Federal funds sold		6,247	3,693	10,753	7,012
Total interest and dividend income		22,050,612	21,105,376	43,952,342	42,140,587
Interest expense:
Deposits		1,083,487	1,101,615	2,155,932	2,203,208
Short-term borrowings		53,244	60,811	117,269	112,507
Federal Home Loan Bank advances		1,001,646	1,495,980	2,445,361	3,051,956
Other borrowings		1,108,442	1,174,594	2,340,328	2,346,125
Junior subordinated debentures		312,957	307,033	620,399	612,207
Total interest expense		3,559,776	4,140,033	7,679,289	8,326,003
Net interest income		18,490,836	16,965,343	36,273,053	33,814,584
Provision for loan/lease losses		2,348,665	1,001,879	4,059,121	2,096,041
Net interest income after provision for loan/lease losses		16,142,171	15,963,464	32,213,932	31,718,543
Noninterest income:
Trust department fees		1,511,176	1,444,414	3,144,571	2,944,756
Investment advisory and management fees		758,433	710,858	1,468,476	1,359,850
Deposit service fees		1,100,866	1,091,923	2,217,849	2,137,808
Gains on sales of residential real estate loans		95,535	132,971	181,675	196,458
Gains on sales of government guaranteed portions of loans		69,346	508,168	140,319	702,187
Securities gains, net			571	416,933	21,196
Earnings on bank-owned life insurance		433,152	388,672	911,891	842,836
Swap fee income		393,723		1,119,930	62,000
Debit card fees		255,000	280,800	493,000	511,405
Correspondent banking fees		285,379	218,504	605,000	450,647
Participation service fees on commercial loan participations		223,827	208,005	445,776	414,201
Gains (losses) on other real estate owned, net		98,876	(126,657)	69,923	(144,705)
Other		426,293	485,984	686,204	592,415
Total noninterest income		5,651,606	5,344,213	11,901,547	10,091,054
Noninterest expense:
Salaries and employee benefits		11,091,952	9,922,191	22,126,404	19,940,109
Occupancy and equipment expense		1,865,552	1,838,971	3,659,723	3,733,259
Professional and data processing fees		1,470,695	1,403,915	2,941,212	2,988,321
FDIC and other insurance		730,563	695,365	1,449,620	1,410,115
Loan/lease expense		368,274	377,492	834,887	723,128
Advertising and marketing		489,504	501,548	907,741	839,135
Postage and telephone		214,142	258,121	463,098	548,796
Stationery and supplies		136,808	145,635	279,363	297,386
Bank service charges		358,996	324,397	696,454	622,429
Losses on debt extinguishment		6,894,185		6,894,185
Other		671,335	638,894	1,271,643	1,144,271
Total noninterest expense		24,292,006	16,106,529	41,524,330	32,246,949
Net income (loss) before income taxes		(2,498,229)	5,201,148	2,591,149	9,562,648
Federal and state income tax expense (benefit)		(1,974,411)	1,193,312	(1,062,922)	1,665,597
Net income (loss)		(523,818)	4,007,836	3,654,071	7,897,051
Less: Preferred stock dividends			373,869		1,081,877
Net income (loss) attributable to QCR Holdings, Inc. common stockholders		$ (523,818)	$ 3,633,967	$ 3,654,071	$ 6,815,174
Earnings (loss) per common share attributable to QCR Holdings, Inc. common shareholders
Basic (in Dollars per share)		$ (0.05)	$ 0.46	$ 0.41	$ 0.86
Diluted (in Dollars per share)		$ (0.05)	$ 0.45	$ 0.40	$ 0.85
Weighted average common shares outstanding (in Shares)	[1]	9,946,744	7,924,624	8,961,327	7,912,830
Weighted average common and common equivalent shares outstanding (in Shares)	[2]	9,946,744	8,050,514	9,098,697	8,040,279
Cash dividends declared per common share (in Dollars per share)		$ 0.04	$ 0.04	$ 0.04	$ 0.04

[1] The increase in weighted average common shares outstanding was primarily due to the common stock issuance discussed in Note 7 to the Consolidated Financial Statements.

[2] In accordance with U.S. GAAP, the common equivalent shares are not considered in the calculation of diluted earnings per share in periods when the numerator is a net loss.