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Shareholders' Equity and Other Comprehensive Income (Details Narrative) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Oct. 28, 2015
Notes to Financial Statements
Previously recorded gain on sale of marketable equity securities		$ 221
Gross unrealized (loss) gain recorded in the statement of operations	$ (441)	128
Increase in prior year net loss of $13,000 due to change in accounting principle		$ 106
Shares authorized for repurchase			2,000,000
Shares repurchased	52,614	8,400
Aggregate price for repurchase	$ 26	$ 6
Total number of shares repurchased	720,414
Aggregate total repurchase price	$ 374

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Amount of the cumulative effect on retained earnings net of related income tax effect.

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Amount of unrealized gain (loss) on investment in marketable security.

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This item represents the total realized gain (loss) included in earnings for the period as a result of selling marketable securities categorized as trading, available-for-sale, or held-to-maturity and any gains or losses realized during the period from the sale of investments accounted for under the cost method of accounting and/or investments that are separately or otherwise not categorized as trading, available-for-sale, or held-to-maturity. Additionally, this item would include any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt and equity securities.

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The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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