Annual report pursuant to Section 13 and 15(d)

Restructuring Charge (Details Textual)

Restructuring Charge (Details Textual) (USD $)	12 Months Ended			3 Months Ended	12 Months Ended		3 Months Ended	12 Months Ended
Restructuring Charge (Details Textual) (USD $)	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2012 Noran Tel Restructuring [Member]	Mar. 31, 2013 Noran Tel Restructuring [Member] employees	Mar. 31, 2012 Noran Tel Restructuring [Member]	Jun. 30, 2011 CNS Asset Sale Restructuring [Member] employees	Mar. 31, 2012 ConferencePlus Restructuring [Member]
Restructuring Charge (Textual) [Abstract]
Restructuring	$ 149,000	$ 550,000	$ 0	$ 300,000	$ 149,000	$ 275,000	$ 200,000	$ 667,000
Cumulative Restructuring					424,000		397,000
Restructuring costs paid					418,000	0		329,000
Unpaid balance of restructuring charges	6,000	613,000	0	275,000	6,000	275,000		338,000
Restructuring and Related Cost, Number of Positions Eliminated					35		12
Reimbursement by NETGEAR							$ 122,000

Amount charged against earnings in the period for incurred and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding asset retirement obligations.

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