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Note 9 - Income Taxes (Details Textual)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	35.00%	35.00%
Effective Income Tax Rate Reconciliation, Percent	41.60%	41.30%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent	4.30%	4.60%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent	1.00%	1.60%
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	1.60%
Effective Income Tax Rate Reconciliation, Tax Contingency, State and Local, Percent	(0.30%)	(0.90%)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost, Percent		1.00%

X

- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32698-109319

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-Topic 235
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h)(2))
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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible expenses.

+ References

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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