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Note 20 - Geographical Information - Revenue by Geographic Areas (Details) - USD ($)	3 Months Ended								12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2017	Mar. 31, 2016
Revenues	$ 43,687,000	$ 35,769,000	$ 38,523,000	$ 30,493,000	$ 34,581,000	$ 46,619,000	$ 44,654,000	$ 22,359,000	$ 148,471,659	$ 148,211,938
UNITED STATES
Revenues									135,257,659	141,010,279
Non-US [Member]
Revenues									$ 13,214,000	$ 7,201,659

X

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

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- Details

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