Note 3 - Summary of Significant Accounting Policies (Details) - Roll-Forward of Allowance for Doubtful Accounts (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Note 3 - Summary of Significant Accounting Policies (Details) - Roll-Forward of Allowance for Doubtful Accounts [Line Items]
Provision	$ 4,094	$ 1,854
Allowance For Doubtful Accounts, Student Notes Receivable [Member]
Note 3 - Summary of Significant Accounting Policies (Details) - Roll-Forward of Allowance for Doubtful Accounts [Line Items]
Balance at beginning of period	3,999
Balance at end of period	3,784
Provision	1,737
Write-offs	$ (1,952)