Consolidated Statements of Operations (unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Income Statement [Abstract]
Revenues	$ 12,599	$ 12,359
Cost of operations	9,985	9,160
Gross profit	2,614	3,199
Selling, general and administrative expenses	5,036	5,206
Restructuring charges	92	4
Operating loss from continuing operations	(2,514)	(2,011)
Other expense:
Interest expense	(1)	(2)
Interest income	1	3
Other expense, net	(46)	(13)
Other expense	(46)	(12)
Loss from continuing operations before income taxes	(2,560)	(2,023)
Income tax expense	5	4
Loss from continuing operations	(2,565)	(2,027)
Discontinued operations:
Adjustment to gain on sale of Portamedic and subsidiary	(150)	0
Gain (loss) from discontinued operations, including income taxes	30	(533)
Loss from discontinued operations	(120)	(533)
Net loss	$ (2,685)	$ (2,560)
Continuing operations
Basic (in dollars per share)	$ (0.04)	$ (0.03)
Diluted (in dollars per share)	$ (0.04)	$ (0.03)
Discontinued operations
Basic (in dollars per share)	$ 0.00	$ (0.01)
Diluted (in dollars per share)	$ 0.00	$ (0.01)
Net loss
Basic (in dollars per share)	$ (0.04)	$ (0.04)
Diluted (in dollars per share)	$ (0.04)	$ (0.04)
Weighted average number of shares - Basic (in shares)	70,410,649	69,835,387
Weighted average number of shares - Diluted (in shares)	70,410,649	69,835,387