Note 3 - Balance Sheet Components (Details Textual) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Unbilled Receivables, Current	$ 9,400,000		$ 11,500,000
Unbilled Receivables, Not Billable, Amount Expected to be Collected after Next Twelve Months	6,200,000		100,000
Depreciation, Depletion and Amortization, Nonproduction	800,000	$ 600,000
Goodwill	215,000		215,000
Finite-Lived Intangible Assets, Net	$ 4,815,000		$ 5,028,000
Finite-Lived Intangible Assets, Remaining Amortization Period	7 years 3 days
Amortization of Intangible Assets	$ 213,000	$ 0