Note 6 - Restructuring Charge	12 Months Ended
Dec. 31, 2013
Restructuring and Related Activities [Abstract]
Restructuring and Related Activities Disclosure [Text Block]	6. RESTRUCTURING CHARGE On October 19, 2012, the Company committed to a plan intended to improve the balance between the Company’s telecommunications product expenses with the reduced revenue levels of this product line. Under the 2012 restructuring plan, the Company reduced its workforce by 10 regular full-time positions. As a result of the 2012 restructuring plan, the Company recorded a restructuring charge of $253,000, classified as an operating expense, in the fourth quarter of 2012 related to future cash expenditures to cover employee severance and benefits. During the three months ended March 31, 2013, the Company reduced its restructuring charge by $67,000 related to reduced future cash expenditures related to severance and benefits for a former employee. The former employee’s accepting other employment in April 2013 reduced the amount of severance and benefit payouts by the Company. These amounts were paid out under the restructuring plan by the end of 2013. On September 30, 2010, the Company initiated a restructuring plan to mitigate gross margin erosion by reducing manufacturing and procurement costs, streamline research and development expense and focus remaining resources on key strategic growth areas, and reduce selling and administrative expenses through product rationalization and consolidation of support functions. Under the 2010 restructuring plan, the Company reduced its worldwide workforce by 39 regular full-time positions, including the closure of its European engineering and support center located in Chaville, France. As a result of the 2010 restructuring plan, the Company recorded a restructuring charge of approximately $3.3 million, classified as an operating expense, in the third quarter of 2010 related to future cash expenditures to cover employee severance and benefits and other related costs. These amounts were paid out under the restructuring plan by the end of 2011.

Note 6 - Restructuring Charge

12 Months Ended

Dec. 31, 2013

Restructuring and Related Activities [Abstract]

Restructuring and Related Activities Disclosure [Text Block]

6. RESTRUCTURING CHARGE

On October 19, 2012, the Company committed to a plan intended to improve the balance between the Company’s telecommunications product expenses with the reduced revenue levels of this product line. Under the 2012 restructuring plan, the Company reduced its workforce by 10 regular full-time positions. As a result of the 2012 restructuring plan, the Company recorded a restructuring charge of $253,000, classified as an operating expense, in the fourth quarter of 2012 related to future cash expenditures to cover employee severance and benefits. During the three months ended March 31, 2013, the Company reduced its restructuring charge by $67,000 related to reduced future cash expenditures related to severance and benefits for a former employee. The former employee’s accepting other employment in April 2013 reduced the amount of severance and benefit payouts by the Company. These amounts were paid out under the restructuring plan by the end of 2013.

On September 30, 2010, the Company initiated a restructuring plan to mitigate gross margin erosion by reducing manufacturing and procurement costs, streamline research and development expense and focus remaining resources on key strategic growth areas, and reduce selling and administrative expenses through product rationalization and consolidation of support functions. Under the 2010 restructuring plan, the Company reduced its worldwide workforce by 39 regular full-time positions, including the closure of its European engineering and support center located in Chaville, France. As a result of the 2010 restructuring plan, the Company recorded a restructuring charge of approximately $3.3 million, classified as an operating expense, in the third quarter of 2010 related to future cash expenditures to cover employee severance and benefits and other related costs. These amounts were paid out under the restructuring plan by the end of 2011.

- Definition

The entire disclosure for restructuring and related activities. Description of restructuring activities such as exit and disposal activities, include facts and circumstances leading to the plan, the expected plan completion date, the major types of costs associated with the plan activities, total expected costs, the accrual balance at the end of the period, and the periods over which the remaining accrual will be settled.

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