Note 5. Stock Options (Details) (USD $)	3 Months Ended
Mar. 31, 2015
Option 1
Exercise Price Range	0.01 - $1.00
Number of Options Outstanding	19,700
Weighted Average Remaining Contractual Life (in Years)	6 years 9 months 22 days
Weighted Average Exercise Price	$ 0.01
Number of Options Exercisable	19,700
Option 2
Exercise Price Range	1.01 - $2.00
Number of Options Outstanding	4,550
Weighted Average Remaining Contractual Life (in Years)	6 years 1 month 24 days
Weighted Average Exercise Price	$ 1.70
Number of Options Exercisable	4,550
Option 3
Exercise Price Range	2.01 - $3.00
Number of Options Outstanding	27,171
Weighted Average Remaining Contractual Life (in Years)	3 years 7 months 24 days
Weighted Average Exercise Price	$ 2.57
Number of Options Exercisable	14,671
Option 4
Exercise Price Range	3.01 - $4.00
Number of Options Outstanding	14,000
Weighted Average Remaining Contractual Life (in Years)	7 years
Weighted Average Exercise Price	$ 3.33
Number of Options Exercisable	14,000
Option 5
Exercise Price Range	4.01 - $8.00
Number of Options Outstanding	98,750
Weighted Average Remaining Contractual Life (in Years)	6 years 25 days
Weighted Average Exercise Price	$ 7.76
Number of Options Exercisable	36,250
Option 6
Exercise Price Range	8.00 - $9.00
Number of Options Outstanding	40,000
Weighted Average Remaining Contractual Life (in Years)	3 years 4 months 20 days
Weighted Average Exercise Price	$ 8.25
Number of Options Exercisable	17,500
Option 7
Exercise Price Range	9.01 - $10.00
Number of Options Outstanding	14,000
Weighted Average Remaining Contractual Life (in Years)	9 years 8 months 27 days
Weighted Average Exercise Price	$ 9.26
Number of Options Exercisable	0
Option 8
Exercise Price Range	10.01-$13.49
Number of Options Outstanding	40,000
Weighted Average Remaining Contractual Life (in Years)	3 years 11 months 16 days
Weighted Average Exercise Price	$ 13.49
Number of Options Exercisable	10,000
Total
Number of Options Outstanding	258,171
Weighted Average Remaining Contractual Life (in Years)	5 years 4 months 17 days
Weighted Average Exercise Price	$ 7.32
Number of Options Exercisable	116,671

No authoritative reference available.

No definition available.

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- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ 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 (c)(1)(iii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ References

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- Definition

Number of options outstanding, including both vested and non-vested options.

+ 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

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(i)-(ii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ 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 (e)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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