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Note 20 - Income Taxes - Components of Income Tax Expense (Benefit) Applicable to Continuing Operations (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Current:
Federal	$ 0	$ 0
State	222,000	31,000
Foreign	79,000	(269,000)
Total current income tax expense (benefit)	301,000	(238,000)
Deferred:
Federal	0	0
State	0	0
Foreign	0	2,230,000
Total deferred income tax expense	0	2,230,000
	$ 301,000	$ 1,992,000

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