11. Stock-Based Compensation (Details 2) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Vested Options
Number of Outstanding, Ending	559	516
Weighted Average Exercise Price Outstanding, Ending	$ 5.89	$ 4.40
Remaining Contractual Term (In Years)	2 years 4 months 28 days	1 year 9 months 7 days
Average Intrinsic Value	$ 772	$ 523
Unvested Options
Number of Outstanding, Ending	367	397
Weighted Average Exercise Price Outstanding, Ending	$ 4.95	$ 5.70
Remaining Contractual Term (In Years)	3 years 10 months 13 days	4 years 1 month 10 days
Average Intrinsic Value	356	9
Options Granted Outside the Company stock plans
Number of Outstanding, Ending	89	98
Weighted Average Exercise Price Outstanding, Ending	$ 5.5	$ 5.5
Remaining Contractual Term (In Years)	2 years 10 months 6 days	3 years 10 months 6 days
Average Intrinsic Value	0	0
Options Granted Outside the Company stock plans \| Vested Options
Number of Outstanding, Ending	89	69
Weighted Average Exercise Price Outstanding, Ending	$ 5.5	$ 5.5
Remaining Contractual Term (In Years)	2 years 10 months 6 days	3 years 10 months 6 days
Average Intrinsic Value	26	0
Options Granted Outside the Company stock plans \| Unvested Options
Number of Outstanding, Ending	0	29
Weighted Average Exercise Price Outstanding, Ending	$ 0	$ 5.5
Remaining Contractual Term (In Years)	0 years	3 years 10 months 6 days
Average Intrinsic Value	$ 0	$ 0

Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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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

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-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 price at which grantees can acquire the shares reserved for issuance under the stock 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)(i)

-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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