Condensed Balance Sheets (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Allowance for doubtful accounts on trade accounts receivable (in dollars)	$ 31	$ 15
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	4,734,217	811,750
Common stock, shares outstanding	4,709,217	786,750
Treasury stock, shares	25,000	25,000
Series A Preferred Stock
Convertible preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Convertible preferred stock, shares authorized	2,800,000	2,800,000
Convertible preferred stock, shares issued	0	1,468,402
Convertible preferred stock, shares outstanding	0	1,468,402
Convertible preferred stock, liquidation preference (in dollars)	0	6,608
Series A-1 Preferred Stock
Convertible preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Convertible preferred stock, shares authorized	800,000	800,000
Convertible preferred stock, shares issued	0	293,750
Convertible preferred stock, shares outstanding	0	293,750
Convertible preferred stock, liquidation preference (in dollars)	0	1,175
Series A-2 Preferred Stock
Convertible preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Convertible preferred stock, shares authorized	400,000	400,000
Convertible preferred stock, shares issued	0	250,000
Convertible preferred stock, shares outstanding	0	250,000
Convertible preferred stock, liquidation preference (in dollars)	$ 0	$ 500