Note 2 - Significant Accounting Policies (Details) - Concentration of Credit Risk (Customer Concentration Risk [Member])	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Alcatel [Member] | Sales Revenue, Net [Member]
Concentration Risk [Line Items]
Customer		8.00%
Alcatel [Member] | Accounts Receivable [Member]
Concentration Risk [Line Items]
Customer		26.00%
Centric [Member] | Sales Revenue, Net [Member]
Concentration Risk [Line Items]
Customer	1.70%	6.00%
Centric [Member] | Accounts Receivable [Member]
Concentration Risk [Line Items]
Customer	3.10%	9.00%
Elosoft [Member] | Sales Revenue, Net [Member]
Concentration Risk [Line Items]
Customer	10.10%	6.00%
Elosoft [Member] | Accounts Receivable [Member]
Concentration Risk [Line Items]
Customer	0.60%	9.00%
Ericsson [Member] | Sales Revenue, Net [Member]
Concentration Risk [Line Items]
Customer		4.10%
Ericsson [Member] | Accounts Receivable [Member]
Concentration Risk [Line Items]
Customer	0.20%	8.00%
GE [Member] | Sales Revenue, Net [Member]
Concentration Risk [Line Items]
Customer	1.90%	13.00%
GE [Member] | Accounts Receivable [Member]
Concentration Risk [Line Items]
Customer	2.30%	22.00%
IDS LLC [Member] | Sales Revenue, Net [Member]
Concentration Risk [Line Items]
Customer	5.80%	8.00%
Raytheon [Member] | Sales Revenue, Net [Member]
Concentration Risk [Line Items]
Customer	13.40%	0.50%
Raytheon [Member] | Accounts Receivable [Member]
Concentration Risk [Line Items]
Customer	23.00%
Uniface [Member] | Sales Revenue, Net [Member]
Concentration Risk [Line Items]
Customer	18.80%	3.00%
Uniface [Member] | Accounts Receivable [Member]
Concentration Risk [Line Items]
Customer	40.90%	3.40%
Sales Revenue, Net [Member]
Concentration Risk [Line Items]
Customer	51.70%	48.60%
Accounts Receivable [Member]
Concentration Risk [Line Items]
Customer	70.10%	77.40%