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Stockholders' Equity (Tables)
12 Months Ended
Dec. 31, 2016
Stockholders' Equity Note [Abstract]  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable [Table Text Block]
As of December 31, 2016, 250,000 options have been granted; 143,094 remain outstanding of which 83,275 are vested and 59,819 are not vested. Vesting schedules for the 2009 Plan are as follows:
 
Vesting Schedule A
 
Vesting Schedule B
 
Vesting Schedule C
 
Vesting Schedule D
 
 
25
%
 
12 months
 
 
33
%
 
24 months
 
 
50
%
 
48 months
 
 
20
%
 
6 months
 
 
50
%
 
24 months
 
 
67
%
 
36 months
 
 
100
%
 
57 months
 
 
40
%
 
18 months
 
 
75
%
 
36 months
 
 
100
%
 
48 months
 
 
 
 
 
 
 
 
60
%
 
30 months
 
 
100
%
 
48 months
 
 
 
 
 
 
 
 
 
 
 
 
 
 
80
%
 
42 months
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
100
%
 
54 months
 
Schedule of Share-based Compensation, Activity [Table Text Block]
The following is a summary of the activity in the Company’s stock option plans and other options for the years ended December 31, 2016 and 2015, respectively:
 
 
 
December 31, 2016
 
December 31, 2015
 
 
 
 
 
Weighted Avg.
 
 
 
Weighted Avg.
 
 
 
Shares
 
Exercise Price
 
Shares
 
Exercise Price
 
Exercisable, beginning of period
 
 
63,800
 
$
5.26
 
 
132,099
 
$
5.07
 
Vested
 
 
30,381
 
 
5.22
 
 
34,801
 
 
5.65
 
Exercised
 
 
4,906
 
 
5.15
 
 
29,500
 
 
2.88
 
Cancelled
 
 
(6,000)
 
 
5.96
 
 
(73,000)
 
 
6.06
 
Exercisable at the end of period
 
 
83,275
 
$
5.20
 
 
64,400
 
$
5.26
 
 
 
 
December 31, 2016
 
December 31, 2015
 
 
 
 
 
Weighted Avg.
 
 
 
Weighted Avg.
 
 
 
Shares
 
Exercise Price
 
Shares
 
Exercise Price
 
Outstanding, beginning of period
 
 
154,000
 
$
5.25
 
 
214,500
 
$
5.20
 
Granted
 
 
-
 
 
-
 
 
49,000
 
 
5.27
 
Exercised
 
 
4,906
 
 
5.15
 
 
29,500
 
 
2.88
 
Cancelled
 
 
(6,000)
 
 
5.96
 
 
(80,000)
 
 
6.01
 
Outstanding at the end of period
 
 
143,094
 
$
5.22
 
 
154,000
 
$
5.25
 
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Vested Outstanding By Grant Date [Table Text Block]
Significant option groups remained outstanding at December 31, 2016 and related weighted average grant date fair value, remaining life and intrinsic value information are as follows:
 
 
 
Options Outstanding
 
Options Vested
 
Options by
 
 
 
Weighted
 
Remain.
 
Intrinsic
 
 
 
Weighted
 
Remain.
 
Intrinsic
 
Grant Date
 
Shares
 
Avg.
 
Life
 
Val
 
Shares
 
Avg.
 
Life
 
Val
 
Nov 2012
 
 
90,000
 
 
5.17
 
 
0.9
 
$
61,200
 
 
71,200
 
 
5.17
 
 
0.9
 
$
48,416
 
Nov 2013
 
 
5,000
 
 
5.75
 
 
1.9
 
$
500
 
 
3,000
 
 
5.75
 
 
1.9
 
$
300
 
Dec 2015
 
 
48,094
 
 
5.27
 
 
4.0
 
$
27,794
 
 
9,075
 
 
5.28
 
 
4.0
 
$
5,129
 
TOTAL
 
 
143,094
 
 
5.22
 
 
2.9
 
$
89,494
 
 
64,400
 
 
5.26
 
 
1.8
 
$
53,845
 
Fair Value, by Balance Sheet Grouping [Table Text Block]
Changes in the fair value of the warrants have been recognized in the consolidated statement of operations.
 
 
 
 
 
 
 
December
 
 
December
 
 
December
 
 
December
 
 
July
 
 
 
December 31, 2016
 
 
31, 2015
 
 
31, 2014
 
 
31, 2013
 
 
31, 2012
 
 
17, 2012
 
Weighted average fair value per warrant
 
$
5.85
 
 
$
5.11
 
 
$
3.76
 
 
$
5.84
 
 
$
4.87
 
 
$
5.03
 
Risk-free interest rate
 
 
1.47
%
 
 
1.76
%
 
 
2.47
%
 
 
2.45
%
 
 
1.18
%
 
 
0.99
%
Expected lives
 
 
3.0 yrs.
 
 
 
4.0 yrs.
 
 
 
5.0 yrs.
 
 
 
6.0 yrs.
 
 
 
7.0 yrs.
 
 
 
7.5 yrs.
 
Expected volatility
 
 
34.03
%
 
 
28.99
%
 
 
44.99
%
 
 
37.49
%
 
 
28.18
%
 
 
36.98
%
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
The following is a summary of the activity of the Company’s warrants for the years ended December 2016 and 2015:
 
 
 
December 31, 2016
 
December 31, 2015
 
 
 
 
 
Weighted Avg.
 
 
 
Weighted Avg.
 
 
 
Shares
 
Exercise Price
 
Shares
 
Exercise Price
 
Outstanding and exercisable, beginning of period
 
 
140,048
 
$
0.01
 
 
140,048
 
$
0.01
 
Granted
 
 
76,675
 
 
7.00
 
 
-
 
 
-
 
Exercised
 
 
 
 
 
 
 
 
-
 
 
-
 
Cancelled
 
 
 
 
 
 
 
 
-
 
 
-
 
Outstanding and exercisable at the end of period
 
 
216,723
 
$
2.48
 
 
140,048
 
$
0.01