Supplementary Balance Sheet Information (Tables)

12 Months Ended

Dec. 31, 2014

Supplementary Balance Sheet Disclosures [Abstract]

Supplemental Balance Sheet Information

Supplementary Balance Sheet Information (in thousands):

	December 31, 2014			December 31, 2013
Inventories:
Raw materials	$	2,439		$	2,619
Work-in-process	2,560			3,189
Finished goods	558			616
Total inventories	5,557			6,424
Less reserve for excess and obsolete inventories	(1,913		)	(2,543		)
Total inventories, net	$	3,644		$	3,881

	December 31, 2014			December 31, 2013
Property and equipment:
Machinery and equipment	$	23,412		$	22,596
Computer hardware and software	2,917			2,497
Leasehold improvements	571			861
Total property and equipment	26,900			25,954
Less accumulated depreciation	(22,134		)	(21,801		)
Total property and equipment, net	$	4,766		$	4,153

	December 31, 2014
	Weighted Average Useful Life (years)	Gross Carrying Amount		Accumulated Amortization			Intangible Assets, Net (1)
Intangible assets with finite useful lives:
Customer relationships	8.6	$	4,850	$	(2,904	)	$	1,946
Trademarks	9.0	600		(53		)	547
Patents	13.2	141		(116		)	25
Covenants not to compete	5.0	70		(11		)	59
Total intangible assets, net		$	5,661	$	(3,084	)	$	2,577
	December 31, 2013
	Weighted Average Useful Life (years)	Gross Carrying Amount		Accumulated Amortization			Intangible Assets, Net (1)
Intangible assets with finite useful lives:
Customer relationships	5.3	$	2,940	$	(2,622	)	$	318
Patents	12.6	141		(106		)	35
Total intangible assets, net		$	3,081	$	(2,728	)	$	353

(1) Amortization expense for intangible assets, net for the years ended December 31, 2014, 2013, and 2012 was $0.4 million, $0.2 million, and $0.2 million, respectively. Estimated amortization expense for intangible assets for 2015 is $0.4 million, for 2016 is $0.4 million, for 2017 is $0.4 million, for 2018 is $0.3 million, for 2019 is $0.3 million, and thereafter is $0.8 million.

	December 31, 2014		December 31, 2013
Other current liabilities:
Professional fees	$	333	$	367
Sales and property taxes payable	197		275
Radiopharmaceuticals and consumable medical supplies	177		242
Current portion of capital lease obligation	348		174
Facilities and related costs	155		151
Outside services and consulting	151		134
Legal reserve	—		50
Other accrued liabilities	428		381
Total other current liabilities	$	1,789	$	1,774