Note 6 - Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($)	Jun. 30, 2015	Dec. 31, 2014
Non-amortizing other intangible assets:
Trade name	$ 1,191,000	$ 1,191,000
Amortizing other intangible assets:
Technology and Customer related intangibles	11,950,000	11,966,000
Non-compete agreements	430,000	430,000
Trade name	1,902,000	1,902,000
Total other intangible assets	15,473,000	15,489,000
Accumulated amortization	(10,541,000)	(10,033,000)
Other intangible assets, net	$ 4,932,000	$ 5,456,000