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Note 14 - Capital Stock (Details) - Capital Stock Issued and Outstanding (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Convertible Preferred Stock [Member]
Class of Stock [Line Items]
Balance, December 31		5,230,634
Balance, December 31 (in Dollars)		$ 130,762
Subordinate Voting Shares [Member]
Class of Stock [Line Items]
Balance, December 31	34,476,038	28,744,410
Balance, December 31 (in Dollars)	300,392	118,448
Multiple Voting Shares [Member]
Class of Stock [Line Items]
Balance, December 31	1,325,694	1,325,694
Balance, December 31 (in Dollars)	373	373
Common Shares [Member]
Class of Stock [Line Items]
Balance, December 31	35,801,732	30,070,104
Balance, December 31 (in Dollars)	$ 300,765	$ 118,821

X

- Definition

No authoritative reference available.

+ References

No definition available.

+ Details

Name:	fsrv_CaptialStockIssuedAndOutstandingValue
Namespace Prefix:	fsrv_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_ClassOfStockLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

+ Details

Name:	us-gaap_SharesIssued
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant