Note 14 - Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2015

Stockholders' Equity Note [Abstract]

Schedule of Stockholders Equity [Table Text Block]

													Accumulated
							Additional						other			Total
	Common stock						paid in						comprehensive			stockholders
	Number			Amount			capital			Deficit			income			equity
Balance, March 31, 2015		10,996,733		$	13,975,005		$	22,318,640		$	(4,121,340	)	$	(1,167,233	)	$	31,005,072
Exercise of stock options		112,656			469,394			(169,922	)		-			-			299,472
Repurchase and retirement of shares		(25,413	)		(32,783	)		(456,753	)		-			-			(489,536	)
Stock-based compensation		-			-			124,605			-			-			124,605
Income tax effect related to stock options exercised		-			-			676,060			-			-			676,060
Net income for the period		-			-			-			2,284,995			-			2,284,995
Increase to reflect the present value of Redeemable non-controlling interest		-			-			-			(12,150	)		-			(12,150	)
Unrealized loss on foreign currency forward contracts treated as hedges		-			-			-			-			(38,046	)		(38,046	)
Reclassification to net income due to settlement of foreign currency forward contracts treated as hedges		-			-			-			-			371,955			371,955
Balance, June 30, 2015		11,083,976		$	14,411,616		$	22,492,630		$	(1,848,495	)	$	(833,324	)	$	34,222,427

													Accumulated
							Additional						other			Total
	Common stock						paid in						comprehensive			stockholders
	Number			Amount			capital			Deficit			income			equity
Balance, December 31, 2014		11,329,732		$	14,130,059		$	29,090,058		$	(6,955,283	)	$	(622,441	)	$	35,642,393
Exercise of stock options		187,653			830,343			(282,888	)		-			-			547,455
Repurchase and retirement of shares		(433,409	)		(548,786	)		(7,652,895	)		-			-			(8,201,681	)
Stock-based compensation		-			-			249,653			-			-			249,653
Income tax effect related to stock options exercised		-			-			1,088,702			-			-			1,088,702
Net income for the period		-			-			-			5,118,938			-			5,118,938
Increase to reflect the present value of Redeemable non-controlling interest		-			-			-			(12,150	)		-			(12,150	)
Unrealized loss on foreign currency forward contracts treated as hedges		-			-			-			-			(998,912	)		(998,912	)
Reclassification to net income due to settlement of foreign currency forward contracts treated as hedges		-			-			-			-			788,029			788,029
Balance, June 30, 2015		11,083,976		$	14,411,616		$	22,492,630		$	(1,848,495	)	$	(833,324	)	$	34,222,427