Note 4 - Balance Sheet Components (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Syntricity [Member]
Goodwill	$ 470,000		$ 470,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	5,000,000		5,000,000
Unbilled Receivables, Current	11,700,000		11,700,000		$ 9,700,000
Depreciation, Depletion and Amortization, Nonproduction	700,000	$ 500,000	1,900,000	$ 1,500,000
Goodwill	470,000		470,000		0
Finite-Lived Intangible Assets, Net	4,831,000		$ 4,831,000		0
Finite-Lived Intangible Assets, Remaining Amortization Period			7 years 58 days
Amortization of Intangible Assets	169,000	0	$ 169,000	31,000
Deferred Costs	$ 0		$ 0		$ 100,000
Impairment of Deferred Costs		$ 1,892,000		$ 1,892,000