Note 9 - Income Taxes	6 Months Ended
Jun. 30, 2017
Notes to Financial Statements
Income Tax Disclosure [Text Block]	9. Income Taxes : For the three months ended June 30, 2017, the Company recorded an income tax provision of $3.0 million, or 38.6% of pre-tax income, compared to $3.5 million, or 49.3% of pre-tax income, for the three months ended June 30, 2016. During the three months ended June 30, 2016, the Company recorded a valuation allowance of $0.7 million to reduce certain state deferred tax assets to the amount that is more likely than not to be realized. The valuation allowance increased the Company’s effective tax rate by 9.4% for the three months ended June 30, 2016. For the six months ended June 30, 2017, the Company recorded an income tax provision of $4.7 million, or 27.4% of pre-tax income, compared to an income tax benefit of $3.0 million, or 51.6%, for the six months ended June 30, 2016. In the first quarter of 2017, the Company made an out-of-period adjustment to correct and record previously unrecognized deferred tax assets, and the associated tax benefit, related to the SERP. The adjustment, which has accumulated since the inception of the plan in 2005, resulted in an increase to after-tax income of $1.9 million in the first quarter of 2017. The Company determined that this adjustment was not material to its current or prior period consolidated financial statements. During the six months ended June 30, 2016, the Company recorded a valuation allowance of $0.7 million to reduce certain state deferred tax assets to the amount that is more likely than not to be realized. The valuation allowance increased the Company’s effective tax rate by 11.4% for the six months ended June 30, 2016. Our tax provision for interim periods is determined using an estimate of our annual effective tax rate, adjusted for discrete items that are taken into account in the relevant period. Each quarter we update our estimate of the annual effective tax rate, and if our estimated tax rate changes, we make a cumulative adjustment. Our quarterly tax provision and our quarterly estimate of our annual effective tax rate is subject to significant volatility due to several factors, including variability in accurately predicting our pre-tax and taxable income and loss and the mix of jurisdictions to which they relate, changes in law and relative changes of expenses or losses for which tax benefits are not recognized. Additionally, our effective tax rate can be more or less volatile based on the amount of pre-tax income. For example, the impact of discrete items and non-deductible expenses on our effective tax rate is greater when our pre-tax income is lower.

Income Taxes

For the

three

months ended

June 30, 2017,

the Company recorded an income tax provision of

$3.0

million, or

38.6%

of pre-tax income, compared to

$3.5

million, or

49.3%

of pre-tax income, for the

three

months ended

June 30, 2016.

During the

three

months ended

June 30, 2016,

the Company recorded a valuation allowance of

$0.7

million to reduce certain state deferred tax assets to the amount that is more likely than

not

to be realized. The valuation allowance increased the Company’s effective tax rate by

9.4%

for the

three

months ended

June 30, 2016.

For the

six

months ended

June 30, 2017,

the Company recorded an income tax provision of

$4.7

million, or

27.4%

of pre-tax income, compared to an income tax benefit of

$3.0

million, or

51.6%,

for the

six

months ended

June 30, 2016.

In the

first

quarter of

2017,

the Company made an out-of-period adjustment to correct and record previously unrecognized deferred tax assets, and the associated tax benefit, related to the SERP. The adjustment, which has accumulated since the inception of the plan in

2005,

resulted in an increase to after-tax income of

$1.9

million in the

first

quarter of

2017.

The Company determined that this adjustment was

not

material to its current or prior period consolidated financial statements. During the

six

months ended

June 30, 2016,

the Company recorded a valuation allowance of

$0.7

million to reduce certain state deferred tax assets to the amount that is more likely than

not

to be realized. The valuation allowance increased the Company’s effective tax rate by

11.4%

for the

six

months ended

June 30, 2016.

Our tax provision for interim periods is determined using an estimate of our annual effective tax rate, adjusted for discrete items that are taken into account in the relevant period. Each quarter we update our estimate of the annual effective tax rate, and if our estimated tax rate changes, we make a cumulative adjustment.

Our quarterly tax provision and our quarterly estimate of our annual effective tax rate is subject to significant volatility due to several factors, including variability in accurately predicting our pre-tax and taxable income and loss and the mix of jurisdictions to which they relate, changes in law and relative changes of expenses or losses for which tax benefits are

not

recognized. Additionally, our effective tax rate can be more or less volatile based on the amount of pre-tax income. For example, the impact of discrete items and non-deductible expenses on our effective tax rate is greater when our pre-tax income is lower.