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Note D - Stock Based Compensation (Tables) | 3 Months Ended
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Mar. 31, 2014
Disclosure Text Block Supplement [Abstract] |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
|  | Three Months Ended |
|  | March 31, 2013 |
Dividend yield |  |  | 0 | %
Volatility |  |  | 62.69 | %
Risk-free rate |  |  | 0.61 | %
Expected life (in years) |  |  | 4.3 |
Fair value of options |  | $ | 5.13 |
Schedule of Share-based Compensation, Activity [Table Text Block] |
|  | Shares Under Options |  |  | Weighted-Average Exercise Price |  |  | Weighted- Average Remaining Contractual Term |  |  | Aggregate Intrinsic Value* |
|  |  |  |  |  | (per share) |  |  | (in years) |  |  |  |  |
Outstanding-January 1, 2014 |  |  | 164,098 |  |  | $ | 10.99 |  |  |  |  |  |  |  |  |
Granted |  |  | - |  |  |  | - |  |  |  |  |  |  |  |  |
Exercised |  |  | (19,050 | ) |  |  | 9.81 |  |  |  |  |  |  |  |  |
Cancelled/forfeited/expired |  |  | (42 | ) |  |  | 11.22 |  |  |  |  |  |  |  |  |
Outstanding at March 31, 2014 |  |  | 145,006 |  |  | $ | 11.15 |  |  |  | 6.0 |  |  | $ | 1,266,412 |
Exercisable at March 31, 2014 |  |  | 76,992 |  |  | $ | 11.31 |  |  |  | 4.4 |  |  | $ | 659,747 |
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] |
|  | Number of Options |  |  | Weighted- Average Grant Date Fair Value |
Nonvested at January 1, 2014 |  |  | 68,039 |  |  | $ | 6.11 |
Granted |  |  | - |  |  |  | - |
Canceled/forfeited/expired |  |  | (25 | ) |  |  | 6.34 |
Vested |  |  | - |  |  |  | - |
Nonvested at March 31, 2014 |  |  | 68,014 |  |  | $ | 11.15 |
|  | Number of Options |  |  | Weighted- Average Grant Date Fair Value |
Nonvested at January 1, 2014 |  |  | 9,500 |  |  | $ | 18.17 |
Granted |  |  | - |  |  |  | - |
Canceled/forfeited/expired |  |  | (9,500 | ) |  |  | 18.17 |
Vested |  |  | - |  |  |  | - |
Nonvested at March 31, 2014 |  |  | - |  |  | $ | - |
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block] |
| Exercise Price |  |  | Shares Under Outstanding Options |  |  | Weighted-Average Remaining Contractual Term |  |  | Shares Under Exercisable Options |
|  |  |  |  |  |  |  |  | (in years) |  |  |  |  |
| $ | 10.44 |  |  |  | 20,000 |  |  |  | 3.9 |  |  |  | 20,000 |
| $ | 10.90 |  |  |  | 12,000 |  |  |  | 3.2 |  |  |  | 12,000 |
| $ | 10.90 |  |  |  | 66,000 |  |  |  | 8.2 |  |  |  | 10,800 |
| $ | 11.22 |  |  |  | 27,006 |  |  |  | 6.7 |  |  |  | 14,192 |
| $ | 11.54 |  |  |  | 6,000 |  |  |  | 2.9 |  |  |  | 6,000 |
| $ | 11.75 |  |  |  | 6,000 |  |  |  | 1.9 |  |  |  | 6,000 |
| $ | 14.32 |  |  |  | 8,000 |  |  |  | 0.9 |  |  |  | 8,000 |
|  |  |  |  |  | 145,006 |  |  |  | 6.0 |  |  |  | 76,992 |

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- Definition Tabular disclosure of share-based compensation plans that may be presented in a single table for outstanding, vested and expected to vest, and exercisable awards. The information that may be disclosed in this table may include, but is not limited to, number of shares, weighted average exercise price, weighted average remaining contractual life, and aggregate intrinsic value. + References No definition available. + Details
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- Definition 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. + References No definition available. + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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