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TAXES - Income Tax Expense and Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Effective tax rate (as a percent) | 35.19% | 32.82% | 37.19%
Colorado ballot initiative costs |  | $ 1,864 |
Income Tax Expense (Benefit), Continuing Operations |  |  |
Federal | $ 11,968 | 6,935 | $ 9,856
State | 359 | 46 | 396
Current tax provision | 12,327 | 6,981 | 10,252
Federal | (1,117) | 637 | (108)
State | 7 | (688) | 490
Deferred tax (benefit) provision | (1,110) | (51) | 382
Total tax provision | $ 11,217 | $ 6,930 | $ 10,634
Income tax provision differs from that computed at the federal statutory rate |  |  |
Federal tax at the statutory rate (as a percent) | 35.00% | 35.00% | 35.00%
State tax (net of federal benefits) (as a percent) | 0.72% | (1.84%) | 1.33%
Permanent items | 0.34% | 3.49% | 0.45%
Tax credits | (0.73%) | (1.03%) | (0.77%)
Other (as a percent) | (0.14%) | (2.80%) | 1.18%
Provision for income taxes as a percentage of pre-tax earnings | 35.19% | 32.82% | 37.19%
Increase in capital from tax benefits for the employee stock-based compensation | $ 865 | $ 386 | $ 413
DEFERRED TAX ASSETS |  |  |
Stock-based compensation | 2,039 | 2,156 |
Compensation and benefits | 1,033 | 744 |
Bad debt reserves | 163 | 114 |
Accrued expenses | 1,695 | 1,663 |
Fixed assets and depreciation | 2,626 | 1,615 |
Base stock | 10 | 1 |
State Taxes | 133 |  |
NOLs & credit carry-forwards | 3,831 | 4,322 |
Deferred income tax asset | 11,530 | 10,615 |
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent | 7,415 | 4,682 |
DEFERRED TAX LIABILITIES |  |  |
Intangibles and amortization | (2,235) | (2,649) |
Prepaid expenses | (1,279) | (984) |
Real estate taxes | (150) | (290) |
Other Reserves | (95) | (24) |
Federal deduction on deferred state taxes | (356) | (360) |
Deferred income tax liability | (4,115) | (4,307) |
NET DEFERRED INCOME TAX ASSET | 7,415 | $ 6,308 |
Adoption of ASU 2015-17 | New Accounting Pronouncement, Early Adoption, Effect |  |  |
DEFERRED TAX ASSETS |  |  |
Deferred Tax Assets, Net of Valuation Allowance, Current | 2,800 |  |
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent | $ 2,800 |  |

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