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Note 7 - Derivative Instruments and Hedging Activities (Tables)

12 Months Ended

Dec. 31, 2017

Notes Tables

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

Derivatives	Balance Sheet Location		December 31, 201 7 Assets at Fair Value				December 31, 201 6 Assets at Fair Value
Foreign currency forward contracts designated as cash flow hedges	Derivative instruments		$	—			$	155,560
Foreign currency forward contracts not designated as cash flow hedges	Derivative instruments		$	—			$	17,328
Total foreign currency forward contracts	Derivative instruments		$	—			$	172,888

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

		Gains and losses on cash flow hedges				Tax impact				Total AOCI
Opening AOCI balance – December 31, 2016		$	155,560			$	(56,406	)		$	99,154
Other comprehensive income (loss) before reclassifications			863,425				(313,078	)			550,347
Amount reclassified from accumulated other comprehensive income			(1,018,985	)			369,484				(649,501	)
Other comprehensive income (loss) for the year ended December 31, 201 7			(155,560	)			56,406				(99,154	)
Ending AOCI balance – December 31, 2017		$	—			$	—			$	—

		Gains and losses on cash flow hedges				Tax impact				Total AOCI
Opening AOCI balance – December 31, 2015		$	(1,721,683	)		$	612,231			$	(1,109,452	)
Other comprehensive income (loss) before reclassifications			871,925				(304,109	)			567,816
Amount reclassified from accumulated other comprehensive income			1,005,318				(364,528	)			640,790
Other comprehensive income (loss) for the year ended December 31, 2016			1,877,243				(668,637	)			1,208,606
Ending AOCI balance – December 31, 2016		$	155,560			$	(56,406	)		$	99,154

		Gains and losses on cash flow hedges				Tax impact				Total AOCI
Opening AOCI balance – December 31, 2014		$	(946,676	)		$	324,235			$	(622,441	)
Other comprehensive income (loss) before reclassifications			(3,171,740	)			1,140,275				(2,031,465	)
Amount reclassified from accumulated other comprehensive income			2,396,733				(852,279	)			1,544,454
Other comprehensive income (loss) for the year ended December 31, 2015			(775,007	)			287,996				(487,011	)
Ending AOCI balance – December 31, 2015		$	(1,721,683	)		$	612,231			$	(1,109,452	)

Derivative Instruments, Gain (Loss) [Table Text Block]

Derivatives in Cash Flow Hedging Relationship		Amount of Gain or (Loss) Recognized in OCI, net of tax, on Derivative (Effective Portion)			Location of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)		Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income, (Effective Portion)			Location of Gain or (Loss) Recognized in Income on Derivative (ineffective Portion and Amount Excluded from Effectiveness Testing)		Amount of Gain or (Loss) Recognized in Income on Derivative (ineffective Portion and Amount Excluded from Effectiveness
Foreign currency forward contracts – year ended December 31, 2017					Operating expenses		$	878,519
		$	(99,154	)	Cost of revenues		$	140,466		Operating expenses		$	-
					Operating expenses		$	(736,616	)
Foreign currency forward contracts – year ended December 31, 2016		$	1,208,606		Cost of revenues		$	(221,460	)	Operating expenses		$	(47,242	)
					Operating expenses		$	(1,870,818	)
Foreign currency forward contracts – year ended December 31, 2015		$	(487,011	)	Cost of revenues		$	(525,916	)	Operating expenses		$	(294,113	)

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- Definition

Tabular disclosure of the components of accumulated other comprehensive income (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14A
-URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669686-108580

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Tabular disclosure of the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
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-Paragraph 4A
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+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624163-113959

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