Consolidated Statements of Operations (unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Income Statement [Abstract]
Revenues	$ 6,679	$ 4,344	$ 13,977	$ 9,727
Cost of operations	4,529	3,137	10,171	6,870
Gross profit	2,150	1,207	3,806	2,857
Selling, general and administrative expenses	4,038	4,556	8,407	9,005
Restructuring charges	0	305	92	305
Operating loss from continuing operations	(1,888)	(3,654)	(4,693)	(6,453)
Other expense:
Interest expense	(1)	(25)	(3)	(26)
Interest income	1	1	2	4
Other expense, net	(50)	(81)	(94)	(94)
Other expense	(50)	(105)	(95)	(116)
Loss from continuing operations before income taxes	(1,938)	(3,759)	(4,788)	(6,569)
Income tax expense	5	4	10	9
Loss from continuing operations	(1,943)	(3,763)	(4,798)	(6,578)
Discontinued operations:
Adjustment to gain on sale of Portamedic and subsidiary	0	75	(150)	75
Loss from discontinued operations, net of tax	(870)	(1,314)	(550)	(1,059)
Loss from discontinued operations	(870)	(1,239)	(700)	(984)
Net loss	$ (2,813)	$ (5,002)	$ (5,498)	$ (7,562)
Continuing operations
Basic (in dollars per share)	$ (0.03)	$ (0.05)	$ (0.07)	$ (0.09)
Diluted (in dollars per share)	$ (0.03)	$ (0.05)	$ (0.07)	$ (0.09)
Discontinued operations
Basic (in dollars per share)	$ (0.01)	$ (0.02)	$ (0.01)	$ (0.01)
Diluted (in dollars per share)	$ (0.01)	$ (0.02)	$ (0.01)	$ (0.01)
Net loss
Basic (in dollars per share)	$ (0.04)	$ (0.07)	$ (0.08)	$ (0.11)
Diluted (in dollars per share)	$ (0.04)	$ (0.07)	$ (0.08)	$ (0.11)
Weighted average number of shares - Basic (in shares)	70,586,942	69,845,277	70,499,282	69,840,332
Weighted average number of shares - Diluted (in shares)	70,586,942	69,845,277	70,499,282	69,840,332