8. Non-Cash Share-Based Employee Compensation (Details) (USD $)	3 Months Ended
Mar. 31, 2013
Notes to Financial Statements
Outstanding Stock Options	460,944
Vested Stock Options	435,944
Nonvested Stock Options	25,000
Issued Stock Options	55,000
Exercised Stock Options
Forfeited Stock Options
Expired Stock Options
Outstanding Stock Options	515,944
Vested Stock Options	454,275
Nonvested Stock Options	61,669
Outstanding Wgt. Avg. Exercise Price	$ 3.47
Vested Wgt. Avg. Exercise Price	$ 3.55
Nonvested Wgt. Avg. Exercise Price	$ 2.03
Issued Wgt. Avg. Exercise Price	$ 2.23
Exercised Wgt. Avg. Exercise Price
Forfeited Wgt. Avg. Exercise Price
Expired Wgt. Avg. Exercise Price
Outstanding Wgt. Avg. Exercise Price	$ 3.34
Vested Wgt. Avg. Exercise Price	$ 3.50
Nonvested Wgt. Avg. Exercise Price	$ 2.15
Outstanding Contractual Life	4 years 6 months
Vested Contractual Life	4 years 29 months
Nonvested Contractual Life	7 years 7 months 6 days
Outstanding Grant Date Fair Value	$ 2.29
Vested Grant Date Fair Value	$ 2.38
Nonvested Grant Date Fair Value	$ 0.68
Issued Grant Date Fair Value	$ 1.4
Exercised Grant Date Fair Value
Forfeited Grant Date Fair Value
Expired Grant Date Fair Value
Outstanding Grant Date Fair Value	$ 2.19
Vested Grant Date Fair Value	$ 2.34
Nonvested Grant Date Fair Value	$ 1.11
Outstanding Aggregate Intrinsic Value
Vested Aggregate Intrinsic Value
Nonvested Aggregate Intrinsic Value
Issued Aggregate Intrinsic Value
Exercised Aggregate Intrinsic Value
Forfeited Aggregate Intrinsic Value
Expired Aggregate Intrinsic Value
Outstanding Aggregate Intrinsic Value	92,305
Vested Aggregate Intrinsic Value	$ 84,838
Nonvested Aggregate Intrinsic Value	$ 7,467

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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