Fair Value Disclosures (Tables)

3 Months Ended

Mar. 31, 2015

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

Assets and liabilities recorded at fair value on a recurring basis are as follows.

			Quoted Prices in		Significant		Significant
			Active Markets		Other		Other
	Balance as of		for Identical		Observable		Unobservable
	March 31,		Assets		Inputs		Inputs
	2015		(Level 1)		(Level 2)		(Level 3)
Debt securities available-for-sale:
U.S. Government agencies	$	552,020	$	-	$	552,020	$	-
State and municipal securities		7,339,798		-		7,339,798		-
Mortgage-backed securities:
Residential mortgage guaranteed by GNMA, FNMA or FHLMC		16,442,562		-		16,442,562		-
Collateralized mortgage obligations issued or guaranteed by U.S. Government agencies or sponsored agencies		60,758,977		-		60,758,977		-
Total securities available-for-sale	$	85,093,357	$	-	$	85,093,357	$	-

			Quoted Prices in		Significant		Significant
			Active Markets		Other		Other
	Balance as of		for Identical		Observable		Unobservable
	December 31,		Assets		Inputs		Inputs
	2014		(Level 1)		(Level 2)		(Level 3)
Debt securities available-for-sale:
U.S. Government agencies	$	563,023	$	-	$	563,023	$	-
State and municipal securities		7,331,085		-		7,331,085		-
Mortgage-backed securities:
Residential mortgage guaranteed by GNMA or FNMA		16,888,271				16,888,271		-
Collateralized mortgage obligations issued or guaranteed by U.S. Government agencies or sponsored agencies		62,410,530		-		62,410,530		-
Total securities available-for-sale	$	87,192,909	$	-	$	87,192,909	$	-

Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Table Text Block]

The tables below present information about assets and liabilities on the balance sheet at March 31, 2015 and December 31, 2014, for which a nonrecurring change in fair value was recorded (amounts in thousands).

			Quoted Prices in		Significant		Significant
			Active Markets		Other		Other
	Balance as of		for Identical		Observable		Unobservable
	March 31,		Assets		Inputs		Inputs
	2015		(Level 1)		(Level 2)		(Level 3)
Impaired loans	$	386,804	$	-	$	-	$	386,804
Foreclosed assets		8,523,267		-		-		8,523,267

			Quoted Prices in		Significant		Significant
			Active Markets		Other		Other
	Balance as of		for Identical		Observable		Unobservable
	December 31,		Assets		Inputs		Inputs
	2014		(Level 1)		(Level 2)		(Level 3)
Impaired loans	$	2,190,522	$	-	$	-	$	2,190,522
Foreclosed assets		8,000,365		-		-		8,000,365

Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Table Text Block]

For Level 3 assets measured at fair value on a nonrecurring basis as of March 31, 2015, the significant unobservable inputs used in the fair value measurements are presented below.

					Significant Other	Weighted
	Balance as of		Valuation		Unobservable	Average
		March 31, 2015		Technique	Input		of Input
Impaired loans	$	386,804		Appraisal	Appraisal discounts (%)		5.7	%
Foreclosed assets		8,523,267		Appraisal	Appraisal discounts (%)		15.0

Fair Value, by Balance Sheet Grouping [Table Text Block]

The carrying amount and estimated fair value of Cornerstone's financial instruments at March 31, 2015 and December 31, 2014, are as follows (in thousands):

	March 31, 2015				December 31, 2014
	Carrying		Estimated		Carrying		Estimated
	Amount		Fair Value		Amount		Fair Value
Assets:
Cash and cash equivalents	$	25,446	$	25,446	$	15,528	$	15,528
Securities		85,117		85,117		87,218		87,219
Federal Home Loan Bank stock		2,323		2,323		2,323		2,323
Loans, net		292,377		292,560		291,869		292,490
Accrued interest receivable		1,125		1,125		1,143		1,143
Liabilities:
Noninterest-bearing demand deposits		56,620		56,620		57,035		57,035
Interest-bearing demand deposits		37,176		37,176		26,464		26,464
Savings deposits and money market accounts		73,730		73,730		80,861		80,861
Time deposits		165,672		167,530		144,294		145,907
Federal funds purchased and securities sold under agreements to repurchase		19,510		19,510		29,410		29,410
Federal Home Loan Bank advances and other borrowings		31,000		31,220		36,000		36,321
Accrued interest payable		106		106		72		72
Unrecognized financial instruments
(net of contract amount):
Commitments to extend credit		-		-		-		-
Letters of credit		-		-		-		-
Lines of credit		-		-		-		-