Acquisition (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
Acquisition [Abstract]
Effective date of merger	Dec. 13, 2011
Percentage of shares acquired by wholly-owned subsidiary (in hundredths)	100.00%
Total consideration	$ 181
Contigent consideration component	81
Amount of consideration	100
Goodwill recognized under reverse acquisition	121
Fair value of the assets acquired and liabilities assumed [Abstract]
Cash and cash equivalents	125
Accounts receivable	1
Inventories	20
Prepaid expenses and other current assets	2
Total assets acquired at fair value	148
Accounts payable	(75)
Accrued compensation and related expenses	(2)
Other accrued liabilities	(11)
Total liabilities assumed	(88)
Net assets acquired	$ 60