Note 4 - Prepaid Expenses and Other (Details Textual) $ in Millions	3 Months Ended
Mar. 31, 2017 USD ($)
Human Services [Member] \| Indemnification Agreement [Member]
Loss Contingency Accrual, Provision	$ 15

Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349

Name:	us-gaap_LossContingencyAccrualProvision
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration