Note 1 - Basis of Presentation (Details)	6 Months Ended
	Jun. 30, 2013
Disclosure Text Block [Abstract]
Number of Reportable Segments	1
Property, Plant and Equipment, Depreciation Methods	straight-line
Minimum Percentage of Receivable Balances for creating Allowance for Doubtful Accounts	85.00%
Period for Creating Allowance for Doubtful Accounts	120 days