Bank deposit available period

Name:	cstr_BankDepositAvailablePeriod
Namespace Prefix:	cstr
Data Type:	xbrli:positiveIntegerItemType
Balance Type:	na
Period Type:	duration

- Definition

The credit facility offered to Sigue as part of the terms of the sale of the Money Transfer Business if certain regulatory requirements are met.

+ Details

Name:	cstr_CreditFacilityOfferedAsPartMoneyTransferSale
Namespace Prefix:	cstr
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount included in current year income tax expense from discontinued operations related to the disposition of the Entertainment business.

+ Details

Name:	cstr_EstimatedValueOfWorthlessStockDeduction
Namespace Prefix:	cstr
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Post-closing net working capital adjustment to purchase price. If the net working capital is in excess of $18.0, then the excess is added to the note receivable. If the net working capital is less than $17.0, then it is deducted from the note receivable. If the net working capital is between $18 and $17, then no adjustment is made to the note receivable.

+ Details

Name:	cstr_ExcessNetWorkingCapitalAdjustment
Namespace Prefix:	cstr
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The face value of notes issued in noncash investing and financing activities.

+ Details

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Namespace Prefix:	cstr
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ Details

Name:	us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems
Namespace Prefix:	us-gaap
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The net amount of operating interest income (expense).

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 10

-Article 9

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-04.10)

-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

+ Details

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Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. An amount representing an agreement for an unconditional promise by the maker to pay the Company (holder) a definite sum of money at a future date(s).

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 3

-Subparagraph b

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.3(b))

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

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Balance Type:	debit
Period Type:	instant

- Definition

The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 15, 16

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 12

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3179-108585

+ Details

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Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Discontinued Operations, Sale Of Assets And Assets Held For Sale (Narrative) (Details) (USD $)	3 Months Ended		5 Months Ended	9 Months Ended		4 Months Ended	0 Months Ended	3 Months Ended	5 Months Ended	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Jun. 09, 2011	Sep. 30, 2011	Sep. 30, 2010	May 25, 2010 E-Pay Business [Member]	Jun. 09, 2011 Money Transfer Business [Member]	Sep. 30, 2011 Money Transfer Business [Member]	Jun. 09, 2011 Money Transfer Business [Member]	Sep. 30, 2011 Money Transfer Business [Member]	Sep. 30, 2011 Entertainment Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Note receivable accepted for sale of subsidiaries									$ 29,500,000
Net working capital adjustment						500,000
Additional loan that may be required as part money transfer sale			5,000,000
Fair value of notes receivable	21,000,000			21,000,000
Interest income	(5,416,000)	(8,693,000)		(18,878,000)	(27,032,000)			900,000		900,000
Bank deposit available period (in months)			18
Proceeds from sale of businesses, net				12,221,000	26,078,000	40,000,000	19,500,000
Estimated value of worthless stock deduction											$ 4,100,000