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EQUITY (Tables)
 12 Months Ended
Dec. 31, 2012
Equity [Abstract]  
Schedule of Share-based Compensation, Stock Options, USSI Activity [Table Text Block]
A summary status of the USSI 2012 Stock Option Plan as of December 31, 2012, as well as changes during the year then ended, is presented below :
 
 
 
2012
 
 
Number
of
Options
 
Weighted
Average
Exercise
Price
 
Weighted
Average
Remaining
Contractual
Life
 
 
(in shares)
 
 
 
(in years)
Outstanding at beginning of year
 
—

 
$
—

 
 
Granted at fair value
 
637,375

 
$
1.72

 
 
Exercised
 
—

 
$
—

 
 
Forfeited
 
(5,000
)
 
$
1.72

 
 
Outstanding at end of year
 
632,375

 
$
1.72

 
6.7
Exercisable at end of year
 
322,337

 
$
1.72

 
6.7
Schedule of Share-based Compensation, Shares Authorized under DSIT Stock Option Plans, by Exercise Price Range [Table Text Block]
Summary information regarding the options under the Plan outstanding and exercisable at December 31, 2012 is as follows:
 
 
 
Outstanding
 
Exercisable
Range of Exercise
Prices
 
Number
Outstanding
 
Weighted
Average
Remaining
Contractual
Life
 
Weighted
Average
Exercise
Price
 
Number
Exercisable
 
Weighted
Average
Exercise
Price
 
 
(in shares)
 
(in years)
 
 
 
(in shares)
 
 
$1.05 – $1.26
 
147,770

 
6.6
 
$
1.18

 
—

 
—

$2.51
 
90,994

 
6.6
 
$
2.51

 
—

 
—

 
 
238,764

 
 
 
$
1.69

 
—

 
—
Schedule of Share-based Compensation, Stock Options, DSIT Activity [Table Text Block]
A summary status of the DSIT Plan as of December 31, 2010, 2011 and 2012, as well as changes during the years then ended, is presented below:
 
 
 
2010
 
2011
 
2012
 
 
Number
of
Options
(in
shares)
 
Weighted
Average
Exercise
Price
 
Number
of
Options
(in
shares)
 
Weighted
Average
Exercise
Price
 
Number
of
Options
(in
shares)
 
Weighted
Average
Exercise
Price
Outstanding at beginning of year
 
152,400

 
$
1.18

 
152,400

 
$
1.18

 
240,824

 
$
1.67

Granted at fair value
 
—

 
—

 
93,054

 
2.45

 
—

 
$
—

Exercised
 
—

 
—

 
—

 
—

 
—

 
—

Forfeited
 
—

 
—

 
(4,630
)
 
1.09

 
(2,060
)
 
$
2.51

Outstanding at end of year
 
152,400

 
$
1.18

 
240,824

 
$
1.67

 
238,764

 
1.69

Exercisable at end of year*
 
—

 
—

 
—

 
—

 
—

 
—


* Options vest only upon an exit event for the Company.
Share based compensation grants to directors and officers [Table Text Block]
Option grants to directors and officers for the years ended December 31, 2010 , 2011 and 2012 can be found below:
 
 
2010
 
2011
 
2012
 
 
Number of shares
 
Weighted average exercise price
 
Number of shares
 
Weighted average exercise price
 
Number of shares
 
Weighted average exercise price
Options granted to - directors and officers (included above) during the year
 
95,000

 
$
4.82

 
141,666

 
$
4.51

 
211,898

 
$
8.02

Exercised by directors and officers during the year
 
67,500

 
$
2.36

 
159,779

 
$
2.64

 
199,697

 
$
3.12

Forfeited by directors and officers during the year
 
120,000

 
$
6.13

 
351,221

 
$
3.00

 
127,803

 
$
5.75

Number of options held by directors and officers at year end
 
1,574,665

 
$
3.69

 
1,199,999

 
$
4.13

 
1,134,397

 
$
4.95
Dividends paid [Table Text Block]
In October 2011, the Board of Directors of the Company approved the payment of a quarterly dividend of $0.035 per share and a 2011 year-end special dividend of $0.05 per share which was paid in January 2012. Dividends paid since the approval of the quarterly dividend are as follows:
Period
 
Regular dividend per share
 
Special dividend per share
 
Total dividend paid per share
 
Dividend paid in cash
 
Value of dividend paid in shares under the DRIP
 
Total dividend paid
 
Value of share discount under the DRIP
 
Number of shares granted under the DRIP
Fourth quarter 2011
 
$
0.035

 
$
—

 
$
0.035

 
$
613

 
$
—

 
$
613

 
$
—

 
—

   Year ended December 31, 2011
 
$
0.035

 
$
—

 
$
0.035

 
$
613

 
$
—

 
$
613

 
$
—

 
—

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
First quarter 2012
 
$
0.035

 
$
0.050

 
$
0.085

 
$
1,496

 
$
—

 
$
1,496

 
$
—

 
—

Second quarter 2012
 
$
0.035

 
$
—

 
$
0.035

 
$
627

 
$
—

 
$
627

 
$
—

 
—

Third quarter 2012
 
$
0.035

 
$
—

 
$
0.035

 
$
559

 
$
69

 
$
628

 
$
4

 
8,429

Fourth quarter 2012
 
$
0.035

 
$
—

 
$
0.035

 
$
526

 
$
106

 
$
632

 
$
6

 
14,305

   Year ended December 31, 2012
 
$
0.14

 
$
0.05

 
$
0.19

 
$
3,208

 
$
175

 
$
3,383

 
$
10

 
22,734
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
The Company utilized the Black-Scholes option-pricing model to estimate fair value, utilizing the following assumptions for the respective years (all in weighted averages):
 
 

2010

2011

2012
Risk-free interest rate

2.8
%
 
1.8
%

1.8
%
Expected term of options, in years

6.3

 
5.5


7

Expected annual volatility

68
%
 
62
%

58
%
Expected dividend yield

—
%
 
1.8
%

1.3
%
Determined weighted average grant date fair value per option
 
$
3.47

 
$
2.17

 
$
3.72
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]
Stock-based compensation expense included in the Company’s Statements of Operations was:
 
 
 
Year ended
December 31,
 
 
2010
 
2011
 
2012
Research and development expense
 
$
—

 
$
—

 
$
81

Selling, general and administrative expense*
 
690

 
458

 
774

Total stock compensation expense
 
$
690

 
$
458

 
$
855


* Stock compensation expense in 2011 includes $51 with respect to stock granted to consultants.
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
A summary of the Company’s option plans as of December 31, 2010, 2011 and 2012, as well as changes during each of the years then ended, is presented below:
 
 

2010

2011

2012
 
 

Number 
of Options
(in shares)

Weighted
Average
Exercise
Price

Number
of Options
(in shares)

Weighted
Average
Exercise
Price

Number
of Options
(in shares)

Weighted
Average
Exercise
Price
 
Outstanding at beginning of year

1,745,165


$
3.52


1,817,665


$
3.69


1,388,333


$
4.17

 
Granted at market price

260,000


$
5.58


166,666


$
4.63


348,898


$
7.85

 
Exercised *

(67,500
)

$
2.36


(231,831
)

$
2.62


(252,453
)

$
3.24

 
Forfeited or expired

(120,000
)

$
6.13


(364,167
)

$
3.00


(173,381
)

$
5.10

 
Outstanding at end of year

1,817,665


$
3.69


1,388,333


$
4.17


1,311,397


$
5.20

 
Exercisable at end of year

1,572,455


$
3.62


1,267,915


$
4.08


954,432


$
4.26

 
 
* All shares issued in connection with option exercises were newly issued shares.
Schedule of cashless net exercises and cash exercises [Table Text Block]
The breakdown of option exercises between cashless net exercises and cash exercises is as follows the years ended December 31, 2010 , 2011 and 2012:

 
 
 Shares granted in net exercise of options
 
 Options forfeited in net exercise of options
 
 Total net exercise options
 
Weighted average exercise price for net exercise options
 
 Options exercised for cash
 
Weighted average exercise price for options exercised for cash
Year ended December 31, 2010
 
—

 
—

 
—

 
$—
 
—

 
$—
Year ended December 31, 2011
 
148,165

 
304,167

 
452,332

 
$2.69
 
83,666

 
$2.51
Year ended December 31, 2012
 
101,619

 
148,381

 
250,000

 
$5.06
 
150,834

 
$2.02
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]
Summary information regarding the options outstanding and exercisable at December 31, 2012 is as follows:
 
 

Outstanding

Exercisable
Range of Exercise Prices

Number
Outstanding

Weighted
Average
Remaining
Contractual
Life

Weighted
Average
Exercise
Price

Number
Exercisable
 
Weighted
Average
Exercise
Price
 

(in shares)

(in years)

 

(in shares)
 
 
$2.24 – $2.56
 
157,500

 
1.68
 
$2.44
 
156,875

 
$2.44
$3.28 – $3.90
 
229,166

 
1.65
 
$3.51
 
229,166

 
$3.51
$4.09 – $4.96
 
188,333

 
3.52
 
$4.48
 
171,666

 
$4.43
$5.05 – $5.50
 
362,500

 
5.05
 
$5.15
 
362,500

 
$5.15
$6.49 - $7.57
 
257,000

 
6.94
 
$7.19
 
30,000

 
$7.41
$7.38 - $11.42
 
116,898

 
6.66
 
$9.21
 
4,225

 
$7.60
 

1,311,397


 

 

954,432

 
 
Summary of warrant activity [Table Text Block]
The Company has issued warrants at exercise prices equal to or greater than market value of the Company’s common stock at the date of issuance.  A summary of warrant activity follows:

 
 
2010
 
2011
 
2012
 
 
Number  of shares underlying warrants
 
Weighted Average Exercise Price
 
Number of shares underlying warrants
 
Weighted Average Exercise Price
 
Number of shares underlying warrants
 
Weighted Average Exercise Price
Outstanding at beginning of year
 
246,904

 
$
4.50

 
313,806

 
$
4.29

 
313,806

 
$
4.29

Granted
 
80,500

 
3.68

 
—

 
$
—

 
—

 
—

Exercised
 
(13,598
)
 
$
4.50

 
—

 
$
—

 
(269,808
)
 
4.35

Forfeited or expired
 
—

 
—

 
—

 
—

 
(15,248
)
 
3.68

Outstanding  and exercisable at end of year
 
313,806

 
$
4.29

 
313,806

 
$
4.29

 
28,750

 
$
3.68