Note 11 - Other Financial Information (Details)	3 Months Ended								12 Months Ended																						36 Months Ended	12 Months Ended		24 Months Ended	3 Months Ended
	Dec. 31, 2013 USD ($)	Sep. 30, 2013 USD ($)	Jun. 30, 2013 USD ($)	Mar. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Sep. 30, 2012 USD ($)	Jun. 30, 2012 USD ($)	Mar. 31, 2012 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Dec. 31, 2013 Nokia Solutions and Networks [Member] Customer Concentration Risk [Member] Sales [Member]	Dec. 31, 2013 Nokia Solutions and Networks [Member] USD ($)	Dec. 31, 2013 Alcatel-Lucent [Member] Customer Concentration Risk [Member] Sales [Member]	Dec. 31, 2012 Alcatel-Lucent [Member] Customer Concentration Risk [Member] Sales [Member]	Dec. 31, 2011 Alcatel-Lucent [Member] Customer Concentration Risk [Member] Sales [Member]	Dec. 31, 2013 Alcatel-Lucent [Member] USD ($)	Dec. 31, 2012 Alcatel-Lucent [Member] USD ($)	Dec. 31, 2011 Alcatel-Lucent [Member] USD ($)	Dec. 31, 2012 Nokia Siemens Networks [Member] Customer Concentration Risk [Member] Sales [Member]	Dec. 31, 2011 Nokia Siemens Networks [Member] Customer Concentration Risk [Member] Sales [Member]	Dec. 31, 2012 Nokia Siemens Networks [Member] USD ($)	Dec. 31, 2011 Nokia Siemens Networks [Member] USD ($)	Dec. 31, 2013 E4D Technologies [Member] USD ($)	Dec. 31, 2012 Networks Engines [Member] USD ($)	Dec. 31, 2012 Genband [Member] USD ($)	Dec. 31, 2013 FRANCE Other Loss [Member] Non-Competition Indemnity [Member] USD ($)	Mar. 31, 2013 FRANCE Other Loss [Member] Non-Competition Indemnity [Member] USD ($)	Mar. 31, 2013 Other Liabilities [Member] Non-Competition Indemnity [Member] USD ($)	Mar. 31, 2013 Other Liabilities [Member] Non-Competition Indemnity [Member] EUR (€)	Dec. 31, 2013 Customer Concentration Risk [Member]	Dec. 31, 2013 Pending Litigation [Member] USD ($)	Dec. 31, 2013 Pending Litigation [Member] EUR (€)	Dec. 31, 2013 Accounts Receivable [Member]	Dec. 31, 2013 Non-Competition Indemnity [Member] USD ($)	Mar. 31, 2013 Non-Competition Indemnity [Member] USD ($)	Mar. 31, 2013 Non-Competition Indemnity [Member] EUR (€)
Note 11 - Other Financial Information (Details) [Line Items]
Revenues	$ 4,322,000	$ 4,168,000	$ 3,818,000	$ 3,280,000	$ 3,204,000	$ 3,167,000	$ 3,470,000	$ 4,014,000	$ 15,588,000	$ 13,855,000	$ 21,993,000		$ 3,500,000				$ 3,300,000	$ 3,800,000	$ 4,600,000			$ 1,900,000	$ 6,700,000
Concentration Risk, Percentage												23.00%		21.00%	27.00%	21.00%				13.00%	31.00%										10.00%			10.00%
Receivables from Customers													404,000				809,000	387,000				721,000		491,000	401,000	312,000
Purchase Obligation	230,000								230,000
Loss Contingency, Damages Sought, Value																																2,900,000	2,100,000
Estimated Litigation Liability																											115,000	340,000	305,000	238,000						340,000	265,000
Loss Contingency, Damages Paid, Value																																			$ 275,000