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Note 19 - Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Guarantor Obligations [Table Text Block]

Name of Joint 

Venture

 

Amount of

Guarantee

 

Interest rate

Maturity, with

extensions

Terms

Type of debt

Anthem K-12, LP (4 property loans)

  $ 31.2  

Various (1)

Various (1)

Jointly and severally with partner

Promissory note