Stock-Based Compensation (Narrative) (Details)	12 Months Ended
Dec. 31, 2016 USD ($) shares
Stock-Based Compensation [Abstract]
Unconverted restricted stock units \| shares	75,262
Total unrecognized compensation costs related to non-vested awards \| $	$ 0

Number of shares of restricted stock determined by relating the portion of time within a reporting period that restricted shares have been outstanding to the total time in that period. Restricted shares are subject to sales, contractual, regulatory or other restrictions that prevent or inhibit the holder from freely disposing of them before the restriction ends.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=64863997&loc=d3e2646-109256

Name:	us-gaap_WeightedAverageNumberOfSharesRestrictedStock
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration