Note 4 - Summary of Acquired Amortizable Intangible Assets (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Technology-Based Intangibles [Member] | Minimum [Member]
Amortization period	10 years	10 years
Technology-Based Intangibles [Member] | Maximum [Member]
Amortization period	20 years	20 years
Technology-Based Intangibles [Member]
Gross carrying amount	$ 7,777	$ 8,228
Accumulated amortization	(1,521)	(1,141)
Net carrying amount	$ 6,256	$ 7,087
Computer Software, Intangible Asset [Member] | Minimum [Member]
Amortization period	3 years
Computer Software, Intangible Asset [Member] | Maximum [Member]
Amortization period	7 years
Computer Software, Intangible Asset [Member]
Amortization period		7 years
Gross carrying amount	$ 3,509	$ 1,332
Accumulated amortization	(80)
Net carrying amount	$ 3,429	$ 1,332
Customer Contracts [Member] | Minimum [Member]
Amortization period	10 years	10 years
Customer Contracts [Member] | Maximum [Member]
Amortization period	15 years	15 years
Customer Contracts [Member]
Gross carrying amount	$ 661	$ 716
Accumulated amortization	(249)	(233)
Net carrying amount	412	483
Gross carrying amount	11,947	10,276
Accumulated amortization	(1,850)	(1,374)
Net carrying amount	$ 10,097	$ 8,902