Note 5 - Supplemental Cash Flow Information (Details) (USD $)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Mar. 06, 2012
Cash Flow, Supplemental Disclosures [Text Block]
Income Taxes Paid	$ 1,307,000	$ 896,000
Interest Paid	$ 8,000	$ 18,000
Shares, Issued (in Shares)			44,912