Note 3 - Investment Securities

12 Months Ended

Dec. 31, 2015

Investment Holdings [Abstract]

Investment Holdings [Text Block]

Note 3.     Investment Securities

The amortized cost and fair value of investment securities as of December 31, 2015 and 2014 are summarized as follows:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized (Losses)			Fair Value
December 31, 2015:
Securities held to maturity:
Municipal securities	$	252,624,159	$	3,190,558	$	(1,173,432	)	$	254,641,285
Other securities		1,050,000		-		-			1,050,000
	$	253,674,159	$	3,190,558	$	(1,173,432	)	$	255,691,285
Securities available for sale:
U.S. govt. sponsored agency securities	$	216,281,416	$	104,524	$	(2,848,561	)	$	213,537,379
Residential mortgage-backed and related securities		81,442,479		511,095		(1,283,439	)		80,670,135
Municipal securities		26,764,981		872,985		(59,378	)		27,578,588
Other securities		1,108,124		540,919		(163	)		1,648,880
	$	325,597,000	$	2,029,523	$	(4,191,541	)	$	323,434,982
December 31, 2014:
Securities held to maturity:
Municipal securities	$	198,829,574	$	2,420,298	$	(1,186,076	)	$	200,063,796
Other securities		1,050,000		-		-			1,050,000
	$	199,879,574	$	2,420,298	$	(1,186,076	)	$	201,113,796
Securities available for sale:
U.S. govt. sponsored agency securities	$	312,959,760	$	173,685	$	(5,263,873	)	$	307,869,572
Residential mortgage-backed and related securities		110,455,925		1,508,331		(541,032	)		111,423,224
Municipal securities		29,408,740		1,053,713		(62,472	)		30,399,981
Other securities		1,342,554		625,145		(846	)		1,966,853
	$	454,166,979	$	3,360,874	$	(5,868,223	)	$	451,659,630

The Company’s HTM municipal securities consist largely of private issues of municipal debt. The municipalities are located primarily within the Midwest with a large portion located in or adjacent to the communities of QCBT and CRBT. The municipal debt investments are underwritten using specific guidelines with ongoing monitoring.

The Company’s residential mortgage-backed and related securities portfolio consists entirely of government sponsored or government guaranteed securities. The Company has not invested in commercial mortgage-backed securities or pooled trust preferred securities.

Gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, as of December 31, 2015 and 2014, are summarized as follows:

	Less than 12 Months					12 Months or More					Total
	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
December 31, 2015:
Securities held to maturity:
Municipal securities	$	14,803,408	$	(294,438	)	$	19,927,581	$	(878,994	)	$	34,730,989	$	(1,173,432	)
Securities available for sale:
U.S. govt. sponsored agency securities	$	112,900,327	$	(1,397,591	)	$	64,476,661	$	(1,450,970	)	$	177,376,988	$	(2,848,561	)
Residential mortgage-backed and related securities		40,356,921		(730,466	)		19,836,637		(552,973	)		60,193,558		(1,283,439	)
Municipal securities		2,220,800		(31,807	)		848,329		(27,571	)		3,069,129		(59,378	)
Other securities		411		(163	)		-		-			411		(163	)
	$	155,478,459	$	(2,160,027	)	$	85,161,627	$	(2,031,514	)	$	240,640,086	$	(4,191,541	)
December 31, 2014:
Securities held to maturity:
Municipal securities	$	20,419,052	$	(587,992	)	$	38,779,545	$	(598,084	)	$	59,198,597	$	(1,186,076	)
Securities available for sale:
U.S. govt. sponsored agency securities	$	23,970,085	$	(102,695	)	$	255,743,056	$	(5,161,178	)	$	279,713,141	$	(5,263,873	)
Residential mortgage-backed and related securities		10,710,671		(10,139	)		37,570,774		(530,893	)		48,281,445		(541,032	)
Municipal securities		920,935		(1,773	)		4,425,337		(60,699	)		5,346,272		(62,472	)
Other securities		243,004		(846	)		-		-			243,004		(846	)
	$	35,844,695	$	(115,453	)	$	297,739,167	$	(5,752,770	)	$	333,583,862	$	(5,868,223	)

At December 31, 2015, the investment portfolio included 470 securities. Of this number, 136 securities were in an unrealized loss position. The aggregate losses of these securities totaled approximately 1% of the total aggregate amortized cost. Of these 136 securities, 49 securities had an unrealized loss for 12 months or more. All of the debt securities in unrealized loss positions are considered acceptable credit risks. Based upon an evaluation of the available evidence, including the recent changes in market rates, credit rating information and information obtained from regulatory filings, management believes the declines in fair value for these debt securities are temporary. In addition, the Company does not intend to sell these securities and/or it is not more-likely-than-not that the Company will be required to sell these debt securities before their anticipated recovery. At December 31, 2015 and 2014, the Company’s equity securities represent less than 1% of the total portfolio.

The Company did not recognize OTTI on any debt or equity securities for the years ended December 31, 2015, 2014 or 2013.  

All sales of securities, as applicable, for the years ended December 31, 2015, 2014 and 2013, respectively, were from securities identified as AFS. Information on proceeds received, as well as the gains and losses from the sale of those securities is as follows:

	2015			2014			2013
Proceeds from sales of securities	$	81,410,368		$	78,476,422		$	37,393,047
Gross gains from sales of securities		1,045,444			517,116			523,071
Gross losses from sales of securities		(246,461	)		(424,753	)		(90,579	)

The amortized cost and fair value of securities as of December 31, 2015, by contractual maturity are shown below. Expected maturities of mortgage-backed and related securities may differ from contractual maturities because the mortgages underlying the securities may be called or prepaid without any penalties. Therefore, these securities are not included in the maturity categories in the following summary. “Other securities” available for sale are excluded from the maturity categories as there is no fixed maturity date for those securities.

	Amortized Cost		Fair Value
Securities held to maturity:
Due in one year or less	$	3,801,378	$	3,803,101
Due after one year through five years		20,215,332		20,344,971
Due after five years		229,657,449		231,543,213
	$	253,674,159	$	255,691,285
Securities available for sale:
Due in one year or less	$	1,858,965	$	1,858,071
Due after one year through five years		120,846,468		119,986,551
Due after five years		120,340,964		119,271,345
	$	243,046,397	$	241,115,967
Residential mortgage-backed and related securities		81,442,479		80,670,135
Other securities		1,108,124		1,648,880
	$	325,597,000	$	323,434,982

Portions of the U.S. government sponsored agencies and municipal securities contain call options, at the discretion of the issuer, to terminate the security at predetermined dates prior to the stated maturity, summarized as follows:

	Amortized Cost		Fair Value
Securities held to maturity:
Municipal securities	$	139,103,302	$	140,444,117
Securities available for sale:
U.S. govt. sponsored agency securities		127,935,745		125,936,777
Municipal securities		16,751,793		17,127,904
	$	144,687,538	$	143,064,681

As of December 31, 2015 and 2014, investment securities with a carrying value of $248,277,471 and $402,507,865, respectively, were pledged on FHLB advances, customer and wholesale repurchase agreements, and for other purposes as required or permitted by law.

As of December 31, 2015, the Company’s municipal securities portfolios were comprised of general obligation bonds issued by 82 issuers with fair values totaling $67.8 million and revenue bonds issued by 92 issuers, primarily consisting of states, counties, towns, villages and school districts with fair values totaling $214.4 million. The Company held investments in general obligation bonds in 19 states, including four states in which the aggregate fair value exceeded $5.0 million. The Company held investments in revenue bonds in nine states, including four states in which the aggregate fair value exceeded $5.0 million.

As of December 31, 2014, the Company’s municipal securities portfolios were comprised of general obligation bonds issued by 77 issuers with fair values totaling $68.8 million and revenue bonds issued by 64 issuers, primarily consisting of states, counties, towns, villages and school districts with fair values totaling $161.7 million. The Company held investments in general obligation bonds in 19 states, including three states in which the aggregate fair value exceeded $5.0 million. The Company held investments in revenue bonds in eight states, including four states in which the aggregate fair value exceeded $5.0 million.

The amortized cost and fair values of the Company’s portfolio of general obligation bonds are summarized in the following tables by the issuer’s state:

December 31, 2015:
U.S. State:	Number of Issuers		Amortized Cost		Fair Value		Average Exposure Per Issuer (Fair Value)
Iowa		15	$	19,974,939	$	20,247,108	$	1,349,807
Illinois		9		10,928,700		11,264,348		1,251,594
North Dakota		5		10,890,000		11,050,235		2,210,047
Missouri		12		7,924,800		7,986,856		665,571
Other		41		16,965,393		17,229,485		420,231
Total general obligation bonds		82	$	66,683,832	$	67,778,032	$	826,561

December 31, 2014:
U.S. State:	Number of Issuers		Amortized Cost		Fair Value		Average Exposure Per Issuer (Fair Value)
Illinois		10	$	22,447,799	$	22,784,638	$	2,278,464
Iowa		14		20,156,969		20,446,655		1,460,475
Missouri		11		8,424,928		8,426,047		766,004
Other		42		16,838,719		17,110,831		407,401
Total general obligation bonds		77	$	67,868,415	$	68,768,171	$	893,093

The amortized cost and fair values of the Company’s portfolio of revenue bonds are summarized in the following tables by the issuer’s state:

December 31, 2015:
U.S. State:	Number of Issuers		Amortized Cost		Fair Value		Average Exposure Per Issuer (Fair Value)
Missouri		41	$	78,593,590	$	79,015,378	$	1,927,204
Iowa		26		70,773,660		71,659,410		2,756,131
Indiana		17		40,018,381		40,210,320		2,365,313
Kansas		3		11,748,679		11,821,055		3,940,352
Other		5		11,570,998		11,735,678		2,347,136
Total revenue bonds		92	$	212,705,308	$	214,441,841	$	2,330,890

December 31, 2014:
U.S. State:	Number of Issuers		Amortized Cost		Fair Value		Average Exposure Per Issuer (Fair Value)
Missouri		30	$	62,358,276	$	62,584,516	$	2,086,151
Iowa		20		59,417,246		60,402,941		3,020,147
Indiana		8		17,991,200		17,925,721		2,240,715
Kansas		2		12,307,866		12,332,528		6,166,264
Other		4		8,295,311		8,449,900		2,112,475
Total revenue bonds		64	$	160,369,899	$	161,695,606	$	2,526,494

Both general obligation and revenue bonds are diversified across many issuers. As of December 31, 2015 and 2014, the Company did not hold general obligation or revenue bonds of any single issuer, the aggregate book or market value of which exceeded 10% of the Company’s stockholders’ equity. Of the general obligation and revenue bonds in the Company’s portfolio, the majority are unrated bonds that represent small, private issuances. All unrated bonds were underwritten according to loan underwriting standards and have an average risk rating of 2, indicating very high quality. Additionally, many of these bonds are funding essential municipal services (water, sewer, education, medical facilities).

The Company’s municipal securities are owned by each of the three charters, whose investment policies set forth limits for various subcategories within the municipal securities portfolio. Each charter is monitored individually and as of December 31, 2015, all were well-within policy limitations approved by the board of directors. Policy limits are calculated as a percentage of total risk-based capital.

As of December 31, 2015, the Company’s standard monitoring of its municipal securities portfolio had not uncovered any facts or circumstances resulting in significantly different credits ratings than those assigned by a nationally recognized statistical rating organization, or in the case of unrated bonds, the rating assigned using the credit underwriting standards.