Stock-Based Compensation Arrangements (Stock-Based Compensation) (Detail) (USD $)	3 Months Ended
Mar. 31, 2014	Mar. 31, 2013
Stock-based compensation expense	$ 122,220	$ 30,689
Stock option grants beginning of period [Member]
Stock-based compensation expense	119,533	26,722
Stock option grants [Member]
Stock-based compensation expense	1,039	3,050
Employee Stock Purchase Plan [Member]
Stock-based compensation expense	$ 1,648	$ 917

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

Name:	us-gaap_ShareBasedCompensation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration