Note 14 - Foreign Revenues and Operations (Detail) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Disclosure on Geographic Areas, Long-Lived Assets in Foreign Countries	$ 460,000	$ 479,000
Assets	9,936,000	10,105,000
Foreign [Member]
Assets	518,000	593,000
Liabilities	$ 234,000	$ 129,000