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.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Publisher FASB
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Stock Transactions (Adoption Of Stock Repurchase Plan) (Narrative) (Details) - Common Stock [Member] - USD ($)							3 Months Ended
	Mar. 31, 2019	Aug. 29, 2018	Dec. 15, 2017	May 01, 2017	Feb. 13, 2017	Aug. 23, 2016	Mar. 31, 2019
No of shares repurchased							(45,470)
Stock Repurchase Plan [Member]
Value of shares authorized to be repurchased		$ 1,000,000	$ 750,000			$ 750,000
No of shares repurchased				666,667	1,000,000
Exercise price of shares repurchased				$ 0.15	$ 0.15
Purchase Plan - Wilson Davis & Co Inc [Member]
No of shares repurchased	45,470