Note 7 - Business Segment Information (Tables)

3 Months Ended

Mar. 31, 2016

Segment Reporting [Abstract]

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

	Commercial Banking
	Quad City		Cedar Rapids		Rockford		Wealth					Intercompany			Consolidated
	Bank & Trust		Bank & Trust		Bank & Trust		Management		All Other			Eliminations			Total
Three Months Ended March 31, 2016
Total revenue	$	13,516,932	$	10,839,221	$	3,794,247	$	2,234,292	$	6,859,775		$	(6,919,935	)	$	30,324,532
Net interest income	$	10,961,447	$	7,024,988	$	2,911,974	$	-	$	(300,887	)	$	-		$	20,597,522
Net income	$	2,831,696	$	2,934,731	$	617,785	$	447,770	$	6,373,488		$	(6,831,981	)	$	6,373,489
Total assets	$	1,361,607,041	$	885,858,279	$	367,031,670	$	-	$	288,814,613		$	(262,638,349	)	$	2,640,673,254
Provision	$	1,222,985	$	550,000	$	300,000	$	-	$	-		$	-		$	2,072,985
Goodwill	$	3,222,688	$	-	$	-	$	-	$	-		$	-		$	3,222,688
Core deposit intangible	$	-	$	1,421,531	$	-	$	-	$	-		$	-		$	1,421,531
Three Months Ended March 31, 2015
Total revenue	$	12,801,418	$	9,525,647	$	3,541,590	$	2,343,438	$	5,616,443		$	(5,705,028	)	$	28,123,508
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	$	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