MARKETABLE SECURITIES

ASC 320 “Investments – Debt and Equity Securities” requires that an enterprise classify all debt securities as either held-to-maturity, trading or available-for-sale. The Company has elected to classify its securities as available-for-sale and therefore is required to adjust securities to fair value at each reporting date. All costs and both realized and unrealized gains and losses on securities are determined on a specific identification basis. The following is a summary of available-for-sale securities at December 31:



($ in thousands)		2017				2016
Marketable Securities:	Fair Value Hierarchy	Cost		Estimated Fair Value		Cost		Estimated Fair Value
Certificates of deposit
with unrecognized losses for less than 12 months		$	6,238	$	6,222	$	1,868	$	1,863
with unrecognized losses for more than 12 months		102		100		—		—
with unrecognized gains		2,088		2,089		3,320		3,329
Total Certificates of deposit	Level 1	8,428		8,411		5,188		5,192
U.S. Treasury and agency notes
with unrecognized losses for less than 12 months		29,741		29,669		947		946
with unrecognized losses for more than 12 months		137		135		—		—
with unrecognized gains		152		153		857		859
Total U.S. Treasury and agency notes	Level 2	30,030		29,957		1,804		1,805
Corporate notes
with unrecognized losses for less than 12 months		18,230		18,159		11,658		11,592
with unrecognized losses for more than 12 months		2,804		2,788		1,053		1,042
with unrecognized gains		—		—		3,431		3,435
Total Corporate notes	Level 2	21,034		20,947		16,142		16,069
Municipal notes
with unrecognized losses for less than 12 months		10,298		10,288		2,556		2,526
with unrecognized losses for more than 12 months		999		987		271		269
with unrecognized gains		277		278		812		814
Total Municipal notes	Level 2	11,574		11,553		3,639		3,609

		$	71,066	$	70,868	$	26,773	$	26,675

We evaluate our securities for other-than-temporary impairment based on the specific facts and circumstances surrounding each security valued below its cost. Factors considered include the length of time the securities have been valued below cost, the financial condition of the issuer, industry reports related to the issuer, the severity of any decline, our intention not to sell the security, and our assessment as to whether it is more likely than not that we will be required to sell the security before a recovery of its amortized cost basis. We then segregate the loss between the amounts representing a decrease in cash flows expected to be collected, or the credit loss, which is recognized through earnings, and the balance of the loss which is recognized through other comprehensive income. At December 31, 2017, the fair market value of investment securities was $198,000 below the cost basis of securities. The Company’s gross unrealized holding gains equal $2,000 and gross unrealized holding losses equal $200,000. The Company has determined that any unrealized losses in the portfolio are temporary as of December 31, 2017.

As of December 31, 2017, the adjustment to accumulated other comprehensive loss in consolidated equity for the temporary change in the value of securities reflects a decline in the market value of available-for-sale securities of $100,000, which includes estimated taxes of $35,000.

The following tables summarize the maturities, at par, of marketable securities by year ($ in thousands):



December 31, 2017	2018		2019		2020		2021		Total
Certificates of deposit	$	4,306	$	2,311	$	1,799	$	—	$	8,416
U.S. Treasury and agency notes	6,399		14,599		9,171		—		30,169
Corporate notes	7,954		6,430		6,450		—		20,834
Municipal notes	1,568		6,957		3,003		—		11,528
	$	20,227	$	30,297	$	20,423	$	—	$	70,947



December 31, 2016	2017		2018		2019		2020		Total
Certificates of deposit	$	531	$	4,306	$	324	$	—	$	5,161
U.S. Treasury and agency notes	1,234		444		142		—		1,820
Corporate notes	4,316		7,133		4,232		—		15,681
Municipal notes	840		1,688		1,075		—		3,603
	$	6,921	$	13,571	$	5,773	$	—	$	26,265

The Company’s investments in corporate notes are with companies that have an investment grade rating from Standard & Poor’s.