Summary Of Significant Accounting Policies (Loss Per Common Share: Potential Shares Of Common Stock Not Included In The Calculation Of Diluted Net Loss Per Share) (Details) - shares	9 Months Ended	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Mar. 31, 2016
Loss Per Common Share [Abstract]
Non-vested stock bonus plan shares	102,048	90,561	88,214
Stock options outstanding	3,029,494	2,796,413	2,561,769
Warrants to purchase common stock	5,489,733	5,489,733	5,489,733

Number of options outstanding, including both vested and non-vested options.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant