Total cash and cash equivalents and marketable investments at fair market value.

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- Definition

Total cash, cash equivalents and marketable investments at amortized cost.

+ References

No definition available.

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- Definition

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

+ References

No definition available.

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Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563

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Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

+ References

No definition available.

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This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 4
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-Publisher FASB
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-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.1)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

No definition available.

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Note 2 - Investment Securities - Unrealized Gains and Losses Related to Marketable Investments (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cash and cash equivalents, Amortized Cost	$ 26,052	$ 14,184	$ 13,775	$ 10,868
Cash and cash equivalents, Fair Market Value	26,052	14,184
Marketable investments, Amortized Cost	9,532	21,760
Marketable investments, Gross Unrealized Gains		2
Marketable investments, Gross Unrealized Losses	(9)	(34)
Marketable investments, Fair Market Value	9,523	21,728
Marketable investments, Gross Unrealized Losses	9	34
Total cash, cash equivalents and marketable securities, Amortized Cost	35,584	35,944
Total cash, cash equivalents and marketable securities, Fair Market Value	35,575	35,912
US Treasury and Government [Member]
Marketable investments, Amortized Cost	1,397	11,885
Marketable investments, Gross Unrealized Gains
Marketable investments, Gross Unrealized Losses		(15)
Marketable investments, Fair Market Value	1,397	11,870
Marketable investments, Gross Unrealized Losses		15
US Government Agencies Debt Securities [Member]
Marketable investments, Amortized Cost	2,677
Marketable investments, Gross Unrealized Gains
Marketable investments, Gross Unrealized Losses
Marketable investments, Fair Market Value	2,677
Marketable investments, Gross Unrealized Losses
US States and Political Subdivisions Debt Securities [Member]
Marketable investments, Amortized Cost	200	201
Marketable investments, Gross Unrealized Gains
Marketable investments, Gross Unrealized Losses		(1)
Marketable investments, Fair Market Value	200	200
Marketable investments, Gross Unrealized Losses		1
Commercial Paper, Not Included with Cash and Cash Equivalents [Member]
Marketable investments, Amortized Cost	2,433	1,836
Marketable investments, Gross Unrealized Gains
Marketable investments, Gross Unrealized Losses		(3)
Marketable investments, Fair Market Value	2,433	1,833
Marketable investments, Gross Unrealized Losses		3
Corporate Debt Securities [Member]
Marketable investments, Amortized Cost	2,825	7,838
Marketable investments, Gross Unrealized Gains		2
Marketable investments, Gross Unrealized Losses	(9)	(15)
Marketable investments, Fair Market Value	2,816	7,825
Marketable investments, Gross Unrealized Losses	$ 9	$ 15