Note 5 - Business Segment Information (Tables)

3 Months Ended

Mar. 31, 2015

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

	Commercial Banking
	Quad City Bank & Trust		Cedar Rapids Bank & Trust		Rockford Bank & Trust		Wealth Management		All Other			Intercompany Eliminations			Consolidated Total
Three Months Ended March 31, 2015
Total revenue	$	12,793,179	$	9,428,494	$	3,667,864	$	2,343,438	$	5,644,606		$	(5,725,910	)	$	28,151,671
Net interest income	$	9,275,038	$	6,358,297	$	2,634,082	$	-	$	(485,200	)	$	-		$	17,782,217
Net income	$	2,562,613	$	2,068,306	$	518,657	$	459,330	$	4,177,889		$	(5,608,906	)	$	4,177,889
Total assets	$	1,268,168,825	$	855,417,474	$	354,993,941	$	-	$	221,549,665		$	(208,470,899	)	$	2,491,659,006
Provision for loan/lease losses	$	882,456	$	600,000	$	228,000	$	-	$	-		$	-		$	1,710,456
Goodwill	$	3,222,688	$	-	$	-	$	-	$	-		$	-		$	3,222,688
Core deposit intangible	$	-	$	1,621,043	$	-	$	-	$	-		$	-		$	1,621,043
Three Months Ended March 31, 2014
Total revenue	$	11,938,133	$	8,303,625	$	3,482,876	$	2,149,334	$	5,223,865		$	(5,315,781	)	$	25,782,052
Net interest income	$	8,921,038	$	5,902,059	$	2,475,682	$	-	$	(449,538	)	$	-		$	16,849,241
Net income	$	2,341,283	$	1,934,770	$	471,039	$	459,294	$	3,889,215		$	(5,206,386	)	$	3,889,215
Total assets	$	1,269,106,354	$	819,179,681	$	346,365,023	$	-	$	203,666,846		$	(211,998,694	)	$	2,426,319,210
Provision for loan/lease losses	$	609,162	$	300,000	$	185,000	$	-	$	-		$	-		$	1,094,162
Goodwill	$	3,222,688	$	-	$	-	$	-	$	-		$	-		$	3,222,688
Core deposit intangible	$	-	$	1,820,555	$	-	$	-	$	-		$	-		$	1,820,555