Note 2 - Supplemental Disclosure of Cash Flow Information (Detail) (USD $)	1 Months Ended	3 Months Ended		6 Months Ended
	Jul. 31, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011
Interest Paid		$ 22,000	$ 100,000	$ 46,000	$ 161,000
Income Taxes Paid		59,000	284,000	59,000	384,000
Noncash or Part Noncash Acquisition, Fixed Assets Acquired				0	947,000
Business Acquisition, Cost of Acquired Entity, Cash Paid	600,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in Shares)	497,512
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned	$ 400,000