6. Stockholders' Equity (Details Narrative) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Number of remaining shares available for issuance	1,456,833		1,456,833
Options exercised			74,699
Options cancelled			93,944
Compensation cost expected to be recognized over a weighted-average period	1 year 4 months 24 days	2 years 4 months 24 days
Selling, general and administrative
Stock-based compensation expense	$ 400	$ 100	$ 1,000	$ 500
2013 Plan [Member]
Compensation cost not yet recognized	1,500		1,500
2014 Plan [Member]
Compensation cost not yet recognized		$ 700		$ 700