Note 15 - Subsequent Events (Tables)

3 Months Ended

12 Months Ended

Mar. 31, 2015

Dec. 31, 2014

Note 15 - Subsequent Events (Tables) [Line Items]

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

Year Ending December 31,
2015 (remaining 9 months)	$	168
2016		229
2017		58
Total minimum lease payments	$	455

Year Ending December 31,
2015	$	31
Total minimum lease payments	$	31

Subsequent Event [Member]

Note 15 - Subsequent Events (Tables) [Line Items]

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

Year Ending December 31,
2015	$	199
2016		229
2017		58
Total minimum lease payments	$	486