10. Share-Based Employee Compensation (Details 1) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($) $ / shares shares
Notes to Financial Statements
Outstanding Stock Options | shares	414,778
Vested Stock Options | shares	361,443
Nonvested Stock Options | shares	53,335
Issued Stock Options | shares	30,000
Exercised Stock Options | shares	112,002
Forfeited Stock Options | shares	0
Expired Stock Options | shares	40,840
Outstanding Stock Options | shares	291,936
Vested Stock Options | shares	276,936
Nonvested Stock Options | shares	15,000
Outstanding Wgt. Avg. Exercise Price	$ 3.79
Vested Wgt. Avg. Exercise Price	3.91
Nonvested Wgt. Avg. Exercise Price	3.00
Issued Wgt. Avg. Exercise Price	5.53
Exercised Wgt. Avg. Exercise Price	3.12
Forfeited Wgt. Avg. Exercise Price	0.00
Expired Wgt. Avg. Exercise Price	4.94
Outstanding Wgt. Avg. Exercise Price	4.07
Vested Wgt. Avg. Exercise Price	4.00
Nonvested Wgt. Avg. Exercise Price	$ 5.35
Outstanding Contractual Life	3 years 4 months 6 days
Vested Contractual Life	3 years 3 months 14 days
Nonvested Contractual Life	4 years 5 months 5 days
Outstanding Grant Date Fair Value	$ 2.29
Vested Grant Date Fair Value	2.55
Nonvested Grant Date Fair Value	.54
Issued Grant Date Fair Value	1.99
Exercised Grant Date Fair Value	1.11
Forfeited Grant Date Fair Value	0.00
Expired Grant Date Fair Value	2.45
Outstanding Grant Date Fair Value	2.68
Vested Grant Date Fair Value	2.72
Nonvested Grant Date Fair Value	$ 1.93
Outstanding Aggregate Intrinsic Value | $	$ 242,940
Vested Aggregate Intrinsic Value | $	$ 242,940