Note 14 - Foreign Revenues and Operations (Details) - Foreign Revenues (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013
Foreign Countries:
Revenues	$ 14,586		$ 16,318
UNITED KINGDOM
Foreign Countries:
Revenues	1,301		1,284
Pacific Rim [Member]
Foreign Countries:
Revenues	550	[1]	598	[1]
CANADA
Foreign Countries:
Revenues	489		496
BRAZIL
Foreign Countries:
Revenues	5		59
Other Countries [Member]
Foreign Countries:
Revenues	93		35
Foreign [Member]
Foreign Countries:
Revenues	2,438		2,472
UNITED STATES
Foreign Countries:
Revenues	$ 12,148		$ 13,846

[1] Includes Australia, New Zealand, Japan and Singapore