Commitments And Contingencies (Investment Banking Agreement) (Narrative) (Details) - Investment Banking Agreement With Wilmington Capital Securities, LLC [Member] - USD ($)		1 Months Ended	12 Months Ended
Mar. 01, 2017	Jan. 31, 2018	Dec. 31, 2017
Other Commitments [Line Items]
Cash retainer fee payable	$ 80,000
Agreement description	The agreement had an initial six-month term and renewed for an additional, consecutive six-month term. Wilmington received a cash retainer fee of $80,000, paid in monthly installments, in the first six-month term, and a reduced retainer fee of $45,000, paid in monthly installments, in the first renewal of the initial six-month term. Wilmington would also receive a transaction fee for any consummated strategic transaction introduced by Wilmington under the Agreement. The transaction fees are based on the Lehman Scale starting at 8% fee reducing to 4% on transactions from $5,000,000 to in excess of $20,000,000.	The agreement has now expired.
Retainer fees		$ 5,000	$ 120,000

Amount of general expenses not normally included in Other Operating Costs and Expenses.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.6)
-URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227

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Balance Type:	debit
Period Type:	duration