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Note 11 - Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2014

Disclosure Text Block Supplement [Abstract]

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

		Beginning				Granted				Exercised				Canceled				Ending
		Balance				During				During				During				Balance
		Outstanding				Period				Period				Period				Outstanding				Exercisable
Year ended December 31, 2013
Number of shares			41,900				0				6,650				0				35,250				35,250
Weighted average exercise price
Per share		$	4.82				0				0				0			$	4.62			$	4.62
Year ended December 31, 2014
Number of shares			35,250				0				0				0				35,250				35,250
Weighted average exercise price
Per share		$	4.62				0				0				0			$	4.62			$	4.62

		Beginning				Granted				Exercised				Canceled				Ending
		Balance				During				During				During				Balance
		Outstanding				Period				Period				Period				Outstanding				Exercisable
Year ended December 31, 2013
Number of shares			162,480				0				10,000				0				152,480				127,480
Weighted average exercise price
Per share		$	4.35				0				0				0			$	4.40			$	4.35
Year ended December 31, 2014
Number of shares			152,480				0				28,000				0				124,480				111,980
Weighted average exercise price
Per share		$	4.35				0				0				0			$	4.57			$	4.56

		Beginning				Granted				Exercised				Canceled				Ending
		Balance				During				During				During				Balance
		Outstanding				Period				Period				Period				Outstanding				Exercisable
Year ended December 31, 2013
Number of shares			200				0				0				200				0				0
Weighted average exercise price
Per share		$	11.51
Year ended December 31, 2014
Number of shares			0				100,000				0				0				100,000				0
Weighted average exercise price
Per share																		$	11.17

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]

			Options Outstanding																Options Exercisable
							Weighted				Weighted												Weighted
							Average				Average												Average
Exercise			Number				Remaining				Exercise				Intrinsic				Number				Exercise				Intrinsic
Price Range			Outstanding				Contractual				Price				Value				Exercisable				Price				Value
$3.00	-	3.99		34,000				2.95			$	3.65			$	365,160				34,000			$	3.65			$	365,160
$4.00	-	4.49		15,930				5.04			$	4.25			$	161,530				15,930			$	4.25			$	161,530
$4.50	-	4.99		100,000				2.78			$	4.62			$	977,000				75,000			$	4.62			$	854,875
$5.00	-	7.99		9,800				6.04			$	7.90			$	63,602				9,800			$	7.90			$	63,602
$8.00	-	12.00		100,000				9.80			$	11.17			$	322,000				0			$	11.17			$	0

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

						Weighted
						Average Grant
		Shares of				Date Fair
		Restricted Stock				Value
Unvested outstanding at January 1, 2013			16,000			$	10.97
Granted			7,800			$	10.16
Vested			(11,800	)		$	10.43
Forfeited/Cancelled			-
Unvested outstanding at December 31, 2013			12,000			$	10.97
Granted			6,400			$	14.24
Vested			(10,400	)		$	12.98
Forfeited/Cancelled			-
Unvested outstanding at December 31, 2014			8,000			$	10.97

						Weighted
		Shares of				Average Grant
		Restricted				Date Fair
		Stock Units				Value
Unvested outstanding at January 1, 2013			30,575			$	8.29
Granted			133,955			$	11.66
Vested			(20,287	)		$	9.38
Forfeited/Cancelled			-
Unvested outstanding at December 31, 2013			144,243			$	11.26
Granted			-
Vested			(37,925	)		$	10.09
Forfeited/Cancelled			(2,500	)		$	10.71
Unvested outstanding at December 31, 2014			103,319			$	11.71

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Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year.

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Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms.

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