Summary Of Significant Accounting Policies (Narrative) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Accounting Policies [Line Items]
Share-based compensation, requisite service period	4 years
Options and stock appreciation rights outstanding	695,117	706,494
Weighted average exercise price	$ 9.32	$ 9.34
Deferred financing costs	$ 320,039	$ 349,018
Deferred financing costs related to line-of-credit arrangements	$ 100,000	$ 25,960
Warrants [Member]
Accounting Policies [Line Items]
Common stock issuable upon exercise of outstanding warrants	2,040,365
Exercise price of warrants	$ 3.44
Restricted Stock Units [Member]
Accounting Policies [Line Items]
Unvested restricted shares	1,271,276	752,008