401(K) plan - Additional Information (Detail) (USD $)	12 Months Ended
Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Defined Contribution Plan Disclosure [Line Items]
Voluntary contributions, maximum	20.00%
Voluntary contributions immediately vested	100.00%
Company matches, maximum amount contributed by the employee	4.00%
Contributions to the plan related to employees of the Company	$ 68,000	$ 78,000	$ 81,000

Defined contribution plan, percentage of employee compensation eligible for employer match.

No definition available.

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Namespace Prefix:	ptsx_
Data Type:	num:percentItemType
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Period Type:	duration

- Definition

The increase in the fair value of plan assets from contributions made by the employer.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (b)(3)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920

+ Details

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Period Type:	duration

- Details

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- Definition

Percentage of employer's matching contributions to a defined contribution plan that vests in a given year.

+ References

No definition available.

+ Details

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- Definition

Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

+ References

No definition available.

+ Details

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