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Note 10 - Commitments and Contingent Liabilities (Details) (USD $) In Millions, unless otherwise specified				9 Months Ended	12 Months Ended
	Sep. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2013 Maximum [Member]	Mar. 31, 2012 Maximum [Member]	Mar. 31, 2012 Minimum [Member]
Note 10 - Commitments and Contingent Liabilities (Details) [Line Items]
Letters of Credit Outstanding, Amount	$ 39.0		$ 39.6
undefined				4.0
Policyholder Benefits and Claims Incurred, Direct					20.0	10.0
Self Insurance Reserve		$ 1.0

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Balance Type:	na
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- Definition

Return of previously paid premium or credit for future premiums for commuting insurance benefits of prior policy.

+ References

No definition available.

+ Details

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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- Definition

Amount, before effect of policies assumed or ceded, of expense related to provision for policy benefits and costs incurred.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-04.5)

-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913



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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 5

-Article 7

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- Definition

Carrying amount (including both current and noncurrent portions) of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property.

+ References

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

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