Note 5 - Marketable Securities

12 Months Ended

Dec. 31, 2022

Notes to Financial Statements

Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]

5. MARKETABLE SECURITIES

The amortized cost, unrealized gain (loss), and estimated fair value of the Company's investments in securities available for sale consisted of the following:

	December 31, 2022
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Marketable securities
Corporate and municipal debt securities	$	4,950	$	26	$	(3	)	$	4,973

The Company had seven separate marketable securities in an unrealized loss position as of December 31, 2022 and the Company held no marketable securities in 2021. The Company did not identify any marketable securities that were other-than-temporarily impaired as of December 31, 2022 and 2021. The Company does not intend to sell any marketable securities that have an unrealized loss at December 31, 2022 and it is not more likely than not that the Company will be required to sell such securities before any anticipated recovery.

The following table summarizes the stated maturities of the Company’s marketable securities:

	December 31, 2022				December 31, 2021
(in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due within one year	$	1,594	$	1,602	$	−	$	−
Due after one year through three years		3,356		3,371		−		−
Total	$	4,950	$	4,973	$	−	$	−