Income Taxes (Narrative) (Detail) (USD $)	3 Months Ended
Sep. 30, 2013	Jun. 30, 2013
Income Taxes [Line Items]
Decrease during the period in the liability for uncertain tax positions	$ 4,000
Liability for Uncertain Tax Positions, Noncurrent	$ 157,000	$ 153,000

The noncurrent portion of the amount recognized for uncertain tax positions as of the balance sheet date.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.24)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Name:	us-gaap_LiabilityForUncertainTaxPositionsNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant