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Note 18 - Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2015

Notes to Financial Statements

Quarterly Financial Information [Text Block]

18. Quarterly Financial Data (Unaudited)

Year 2015		Quarter ended December 31,				Quarter ended September 30,				Quarter ended June 30,				Quarter ended March 31,
Product revenue		$	25,607			$	23,676			$	22,898			$	15,515
Total revenue			30,894				23,681				22,904				15,520
Cost of product revenue			6,290				5,176				5,274				4,313
Gross profit on product revenue			19,317				18,500				17,624				11,202
Net income		$	11,042			$	8,380			$	7,820			$	3,516
Per common share information:
Basic net income per share		$	0.74			$	0.56			$	0.52			$	0.24
Basic common shares outstanding			14,965				14,967				14,961				14,905
Diluted net income per share		$	0.72			$	0.55			$	0.51			$	0.23
Diluted common shares outstanding			15,353				15,316				15,336				15,330

Year 2014		Quarter ended December 31,				Quarter ended September 30,				Quarter ended June 30,				Quarter ended March 31,
Product revenue		$	17,880			$	21,975			$	21,267			$	14,352
Total revenue			23,255				22,055				26,275				34,010
Cost of product revenue			5,511				5,725				5,333				4,361
Gross profit on product revenue			12,369				16,250				15,934				9,991
Net income		$	7,816			$	6,171			$	9,302			$	15,030
Per common share information:
Basic net income per share		$	0.53			$	0.42			$	0.63			$	1.04
Basic common shares outstanding			14,801				14,759				14,688				14,461
Diluted net income per share		$	0.51			$	0.40			$	0.60			$	0.97
Diluted common shares outstanding			15,278				15,435				15,493				15,499

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- References

No definition available.

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- Definition

The entire disclosure for the quarterly financial data in the annual financial statements. The disclosure may include a tabular presentation of financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income or loss before extraordinary items and earnings per share data. It also includes an indication if the information in the note is unaudited, comments on the aggregate effect of year-end adjustments, and an explanation of matters or transactions that affect comparability or are pertinent to an understanding of the information furnished.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section 45
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=51655806&loc=d3e765-108305

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)-(j)
-URI http://asc.fasb.org/extlink&oid=51825399&loc=d3e1280-108306

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=51655806&loc=d3e725-108305

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 6
-Section G
-Subsection 1

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 302
-Paragraph a

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