3. Fair Value

Griffin applies the provisions of FASB ASC 820, "Fair Value Measurement" ("ASC 820"), which establishes a fair value hierarchy that requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. An asset or liability's categorization within the fair value hierarchy is based upon the lowest level of input that is significant to the fair value measurement. ASC 820 establishes three levels of inputs that may be used to measure fair value, as follows:

Level 1 applies to assets or liabilities for which there are quoted market prices in active markets for identical assets or liabilities. Griffin's available-for-sale securities are considered Level 1 within the fair value hierarchy.

Level 2 applies to assets or liabilities for which there are inputs other than quoted prices included within Level 1 that are observable for the asset or liability, such as quoted prices for similar assets or liabilities in active markets; quoted prices for assets or liabilities in markets with insufficient volume or infrequent transactions (less active markets); or model-derived valuations in which significant inputs are observable or can be derived principally from, or corroborated by, observable market data. Level 2 liabilities include Griffin's interest rate swap derivatives (see Note 10). Beginning in the fiscal 2013 first quarter, the fair values of Griffin's interest rate swap derivative instruments were based on discounted cash flow models that incorporate the cash flows of the derivatives as well as the current OIS rate and swap curve along with other market data. Prior to the beginning of fiscal 2013, the fair values of Griffin's interest rate swap derivative instruments were based on discounted cash flow models that incorporated the cash flows of the derivatives as well as the current LIBOR rate and swap curve along with other market data. The change to using the OIS rate from the LIBOR rate is consistent with current industry best practices. The OIS rate is now considered the best discount rate to utilize since it is the best proxy for the risk-free rate. These inputs are readily available in public markets or can be derived from information available in publicly quoted markets, therefore, Griffin has categorized these derivative instruments as Level 2 within the fair value hierarchy.

Level 3 applies to assets or liabilities for which there are unobservable inputs to the valuation methodology that are significant to the measurement of the fair value of the assets or liabilities.

During fiscal 2013, Griffin did not transfer any assets or liabilities in or out of Levels 1 and 2. The following are Griffin's financial assets and liabilities carried at fair value and measured at fair value on a recurring basis:

	November 30, 2013

	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Marketable equity securities	$	2,208	$	—	$	—




Interest rate swap asset	$	—	$	63	$	—




Interest rate swap liabilities	$	—	$	2,285	$	—

	December 1, 2012

	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Marketable equity securities	$	4,226	$	—	$	—




Interest rate swap liabilities	$	—	$	3,191	$	—

The carrying and estimated fair values of Griffin's financial instruments are as follows:

			November 30, 2013				December 1, 2012

	Fair Value Hierarchy Level		Carrying Value		Estimated Fair Value		Carrying Value		Estimated Fair Value
Financial assets:
Cash and cash equivalents		1	$	14,179	$	14,179	$	10,181	$	10,181
Available-for-sale securities		1		2,208		2,208		4,226		4,226
Interest rate swap		2		63		63		—		—
Financial liabilities:
Mortgage debt		2	$	66,708	$	67,931	$	59,489	$	61,781
Interest rate swaps		2		2,285		2,285		3,191		3,191

The amounts included in the financial statements for cash and cash equivalents, accounts receivable, accounts payable and accrued liabilities approximate their fair values because of the short-term maturity of these instruments. The fair values of the available-for-sale securities are based on quoted market prices. The fair values of the mortgage debt are estimated based on current rates offered to Griffin for similar debt of the same remaining maturities and, additionally, Griffin considers its credit worthiness in determining the fair value of its debt. The fair values of the interest rate swaps (used for purposes other than trading) are determined based on discounted cash flow models that incorporate the cash flows of the derivatives as well as the current OIS rate and swap curve along with other market data, taking into account current interest rates and the credit worthiness of the counterparty for assets and the credit worthiness of Griffin for liabilities.

At November 30, 2013 and December 1, 2012, the fair values of Griffin's fixed rate mortgages were approximately $29,300 and approximately $35,600, respectively. The fair values were based on the present values of future cash flows discounted at estimated borrowing rates for similar loans and the credit worthiness of Griffin.