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Investments (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified |
3 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|
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Jun. 30, 2013
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Mar. 31, 2013
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Nov. 22, 2011
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Jun. 30, 2013
Nano Vibronix [Member]
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Jun. 30, 2013
Nano Vibronix [Member]
Convertible Promissory Note [Member]
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Nov. 22, 2011
Nano Vibronix [Member]
Convertible Promissory Note [Member]
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| Nano Vibronix Transaction [Abstract] | |||||||||
| Strategic investment | $ 353 | $ 345 | [1] | $ 300 | |||||
| Interest rate on convertible promissory note (in hundredths) | 10.00% | ||||||||
| Maturity date of convertible promissory note | Nov. 15, 2014 | ||||||||
| Conversion into Series B-1 Participating Convertible Preferred Stock | $ 3,000 | ||||||||
| Conversion price (in dollars per share) | $ 0.284 | $ 0.284 | |||||||
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