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Note 3 - Stock-Based Compensation | 6 Months Ended
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Jun. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Disclosure of Compensation Related Costs, Share-based Payments [Text Block] | 3. STOCK-BASED COMPENSATION We have one stock option plan which provides for annual stock option grants to non-employee directors with an exercise price equal to the fair market value of the shares at the date of grant. Under this plan, 12,000 options were awarded to directors in both the first six months of 2013 and the first six months of 2012. These options vest and become exercisable six months from the option grant date. We had two other stock option plans from 1995 which provided for stock option grants to officers, key employees and non-employee directors. These plans expired in 2005. The expiration of the plans has no effect on the options previously granted. Options outstanding and exercisable were granted at a stock option price which was not less than the fair market value of our common stock as of closing on the date the option was granted and no option has a term in excess of ten years. We recognized share based compensation expense of $5,843 and $5,000 for each of the quarters ended June 30, 2013 and 2012, respectively, and $11,686 and $10,000 for each of the six month periods ended June 30, 2013 and 2012, respectively, as a component of operating expenses. During the six months ended June 3 0, 2013 and 2012, the stock option activity under our stock option plans was as follows:
|  | Weighted Average Exercise Price |  |  | # of shares |  |  | Weighted Average Remaining Contractual Term (in years) |  |  | Aggregate Intrinsic Value |
Outstanding, January 1, 2012 |  | $ | 4.40 |  |  |  | 115,600 |  |  |  |  |  |  |  |  |
Granted |  |  | 5.27 |  |  |  | 12,000 |  |  |  |  |  |  |  |  |
Cancelled |  |  | - |  |  |  | - |  |  |  |  |  |  |  |  |
Exercised |  |  | - |  |  |  | - |  |  |  |  |  |  |  |  |
Outstanding, June 30, 2012 |  | $ | 4.48 |  |  |  | 127,600 |  |  |  | 5.13 |  |  | $ | 216,332 |
Exercisable, June 30, 2012 |  | $ | 4.40 |  |  |  | 115,600 |  |  |  | 4.69 |  |  | $ | 206,332 |
Outstanding, January 1, 2013 |  | $ | 4.53 |  |  |  | 121,600 |  |  |  |  |  |  |  |  |
Granted |  |  | 6.87 |  |  |  | 12,000 |  |  |  |  |  |  |  |  |
Cancelled |  |  | - |  |  |  | - |  |  |  |  |  |  |  |  |
Exercised |  |  | 4.24 |  |  |  | (22,000 | ) |  |  |  |  |  |  |  |
Outstanding, June 30, 2013 |  | $ | 4.84 |  |  |  | 111,600 |  |  |  | 5.72 |  |  | $ | 167,186 |
Exercisable, June 30, 2013 |  | $ | 4.60 |  |  |  | 99,600 |  |  |  | 5.24 |  |  | $ | 155,500 |
Other information pertaining to option activity during the six-month periods ended June 30, 2013 and 2012 are as follows:
|  | June 30, 2013 |  |  | June 30, 2012 |
Weighted average grant-date fair value of stock options granted |  | $ | 11,686 |  |  | $ | 10,000 |
Total fair value of stock options vested |  | N/A |  |  | N/A |
Total intrinsic value of stock options exercised |  | $ | 51,260 |  |  | N/A |
There was no unrecognized compensation cost as of June 30, 2013 and 2012.

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- Definition The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: 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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6406099&loc=d3e25284-112666 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5444-113901 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 + Details
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