Stockholders' Equity And Stock-Based Compensation (Narrative) (Details)	6 Months Ended
	Jun. 30, 2016 USD ($) item $ / shares shares	May 23, 2016 $ / shares
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Number of equity compensation plans | item	1
Initial Public Offering [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Price per share		$ 4.00
Stock Options [Member] | Common Stock Warrants [Member] | Initial Public Offering [Member] | Underwriters [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Number of shares of common stock called by issuance of warrants, outstanding | shares	574,985
Price per share	$ 5.00
Period the warrants are exercisable after issuance	180 days
Exercisable period of warrants or rights	5 years
Value of warrants | $	$ 1,443,000