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Stockholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2016
Stockholders' Equity Note [Abstract] |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable [Table Text Block] | As of December 31, 2016, 250,000 options have been granted; 143,094 remain outstanding of which 83,275 are vested and 59,819 are not vested. Vesting schedules for the 2009 Plan are as follows:
Vesting Schedule A |  | Vesting Schedule B |  | Vesting Schedule C |  | Vesting Schedule D |
| 25 | % |  | 12 months |  |  | 33 | % |  | 24 months |  |  | 50 | % |  | 48 months |  |  | 20 | % |  | 6 months |
| 50 | % |  | 24 months |  |  | 67 | % |  | 36 months |  |  | 100 | % |  | 57 months |  |  | 40 | % |  | 18 months |
| 75 | % |  | 36 months |  |  | 100 | % |  | 48 months |  |  |  |  |  |  |  |  | 60 | % |  | 30 months |
| 100 | % |  | 48 months |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 80 | % |  | 42 months |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100 | % |  | 54 months |
Schedule of Share-based Compensation, Activity [Table Text Block] | The following is a summary of the activity in the Company’s stock option plans and other options for the years ended December 31, 2016 and 2015, respectively:
|  | December 31, 2016 |  | December 31, 2015 |
|  |  |  | Weighted Avg. |  |  |  | Weighted Avg. |
|  | Shares |  | Exercise Price |  | Shares |  | Exercise Price |
Exercisable, beginning of period |  |  | 63,800 |  | $ | 5.26 |  |  | 132,099 |  | $ | 5.07 |
Vested |  |  | 30,381 |  |  | 5.22 |  |  | 34,801 |  |  | 5.65 |
Exercised |  |  | 4,906 |  |  | 5.15 |  |  | 29,500 |  |  | 2.88 |
Cancelled |  |  | (6,000) |  |  | 5.96 |  |  | (73,000) |  |  | 6.06 |
Exercisable at the end of period |  |  | 83,275 |  | $ | 5.20 |  |  | 64,400 |  | $ | 5.26 |
|  | December 31, 2016 |  | December 31, 2015 |
|  |  |  | Weighted Avg. |  |  |  | Weighted Avg. |
|  | Shares |  | Exercise Price |  | Shares |  | Exercise Price |
Outstanding, beginning of period |  |  | 154,000 |  | $ | 5.25 |  |  | 214,500 |  | $ | 5.20 |
Granted |  |  | - |  |  | - |  |  | 49,000 |  |  | 5.27 |
Exercised |  |  | 4,906 |  |  | 5.15 |  |  | 29,500 |  |  | 2.88 |
Cancelled |  |  | (6,000) |  |  | 5.96 |  |  | (80,000) |  |  | 6.01 |
Outstanding at the end of period |  |  | 143,094 |  | $ | 5.22 |  |  | 154,000 |  | $ | 5.25 |
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Vested Outstanding By Grant Date [Table Text Block] | Significant option groups remained outstanding at December 31, 2016 and related weighted average grant date fair value, remaining life and intrinsic value information are as follows:
|  | Options Outstanding |  | Options Vested |
Options by |  |  |  | Weighted |  | Remain. |  | Intrinsic |  |  |  | Weighted |  | Remain. |  | Intrinsic |
Grant Date |  | Shares |  | Avg. |  | Life |  | Val |  | Shares |  | Avg. |  | Life |  | Val |
Nov 2012 |  |  | 90,000 |  |  | 5.17 |  |  | 0.9 |  | $ | 61,200 |  |  | 71,200 |  |  | 5.17 |  |  | 0.9 |  | $ | 48,416 |
Nov 2013 |  |  | 5,000 |  |  | 5.75 |  |  | 1.9 |  | $ | 500 |  |  | 3,000 |  |  | 5.75 |  |  | 1.9 |  | $ | 300 |
Dec 2015 |  |  | 48,094 |  |  | 5.27 |  |  | 4.0 |  | $ | 27,794 |  |  | 9,075 |  |  | 5.28 |  |  | 4.0 |  | $ | 5,129 |
TOTAL |  |  | 143,094 |  |  | 5.22 |  |  | 2.9 |  | $ | 89,494 |  |  | 64,400 |  |  | 5.26 |  |  | 1.8 |  | $ | 53,845 |
Fair Value, by Balance Sheet Grouping [Table Text Block] | Changes in the fair value of the warrants have been recognized in the consolidated statement of operations.
|  |  |  |  |  | December |  |  | December |  |  | December |  |  | December |  |  | July |
|  | December 31, 2016 |  |  | 31, 2015 |  |  | 31, 2014 |  |  | 31, 2013 |  |  | 31, 2012 |  |  | 17, 2012 |
Weighted average fair value per warrant |  | $ | 5.85 |  |  | $ | 5.11 |  |  | $ | 3.76 |  |  | $ | 5.84 |  |  | $ | 4.87 |  |  | $ | 5.03 |
Risk-free interest rate |  |  | 1.47 | % |  |  | 1.76 | % |  |  | 2.47 | % |  |  | 2.45 | % |  |  | 1.18 | % |  |  | 0.99 | %
Expected lives |  |  | 3.0 yrs. |  |  |  | 4.0 yrs. |  |  |  | 5.0 yrs. |  |  |  | 6.0 yrs. |  |  |  | 7.0 yrs. |  |  |  | 7.5 yrs. |
Expected volatility |  |  | 34.03 | % |  |  | 28.99 | % |  |  | 44.99 | % |  |  | 37.49 | % |  |  | 28.18 | % |  |  | 36.98 | %
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block] | The following is a summary of the activity of the Company’s warrants for the years ended December 2016 and 2015:
|  | December 31, 2016 |  | December 31, 2015 |
|  |  |  | Weighted Avg. |  |  |  | Weighted Avg. |
|  | Shares |  | Exercise Price |  | Shares |  | Exercise Price |
Outstanding and exercisable, beginning of period |  |  | 140,048 |  | $ | 0.01 |  |  | 140,048 |  | $ | 0.01 |
Granted |  |  | 76,675 |  |  | 7.00 |  |  | - |  |  | - |
Exercised |  |  |  |  |  |  |  |  | - |  |  | - |
Cancelled |  |  |  |  |  |  |  |  | - |  |  | - |
Outstanding and exercisable at the end of period |  |  | 216,723 |  | $ | 2.48 |  |  | 140,048 |  | $ | 0.01 |

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- Definition Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13476-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13467-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6447952&loc=d3e13220-108610 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14172-108612 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13433-108611 + Details
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- Definition Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6784392&loc=d3e188667-122775 Reference 4: 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=68057994&loc=d3e25284-112666 + Details
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