8. Non-Cash Share-Based Employee Compensation (Details) (USD $)	6 Months Ended
	Jun. 30, 2014
Notes to Financial Statements
Outstanding Stock Options, beginning	482,611
Vested Stock Options, beginning	410,942
Nonvested Stock Options, beginning	71,669
Issued Stock Options	35,000
Exercised Stock Options	75,833
Forfeited Stock Options
Expired Stock Options	5,000
Outstanding Stock Options, ending	436,778
Vested Stock Options, ending	373,443
Nonvested Stock Options, ending	63,335
Outstanding Wgt. Avg. Exercise Price, beginning	$ 3.5
Vested Wgt. Avg. Exercise Price, beginning	$ 3.64
Nonvested Wgt. Avg. Exercise Price, beginning	$ 2.68
Issued Wgt. Avg. Exercise Price	$ 3.40
Exercised Wgt. Avg. Exercise Price	$ 2.18
Forfeited Wgt. Avg. Exercise Price
Expired Wgt. Avg. Exercise Price	$ 3.45
Outstanding Wgt. Avg. Exercise Price, ending	$ 3.72
Vested Wgt. Avg. Exercise Price, ending	$ 3.86
Nonvested Wgt. Avg. Exercise Price, ending	$ 2.90
Outstanding Contractual Life	4 years 1 month 17 days
Vested Contractual Life	3 years 9 months 29 days
Nonvested Contractual Life	5 years 10 months 13 days
Outstanding Grant Date Fair Value, beginning	$ 2.18
Vested Grant Date Fair Value, beginning	$ 2.41
Nonvested Grant Date Fair Value, beginning	$ 0.87
Issued Grant Date Fair Value	$ 0.08
Exercised Grant Date Fair Value	$ 1.03
Forfeited Grant Date Fair Value
Expired Grant Date Fair Value	$ 0.03
Outstanding Grant Date Fair Value	$ 2.24
Vested Grant Date Fair Value	$ 2.52
Nonvested Grant Date Fair Value	$ 0.61
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	368,459
Vested Aggregate Intrinsic Value	$ 307,773
Nonvested Aggregate Intrinsic Value	$ 60,686