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Segment Information (Tables)
6 Months Ended
Jun. 30, 2013
Segment Reporting [Abstract]  
Schedule of Segment Reporting Information, by Segment [Table Text Block]
For the three months ended June 30, 2013 (in thousands):
 
Sales
 
Rental
 
Service & Maintenance
 
Corporate
 
Total
Revenue
$
3,329

 
$
16,721

 
$
208

 
$

 
$
20,258

Operating costs and expenses
1,600

 
6,258

 
85

 
6,471

 
14,414

Other income (expense)

 

 

 
(79
)
 
(79
)
Income before provision for income taxes
$
1,729

 
$
10,463

 
$
123

 
$
(6,550
)
 
$
5,765


For the three months ended June 30, 2012 (in thousands):
 
Sales
 
Rental
 
Service & Maintenance
 
Corporate
 
Total
Revenue
$
10,649

 
$
13,671

 
$
188

 
$

 
$
24,508

Operating costs and expenses
7,563

 
5,874

 
98

 
6,144

 
19,679

Other income (expense)

 

 

 
58

 
58

Income before provision for  income taxes
$
3,086

 
$
7,797

 
$
90

 
$
(6,086
)
 
$
4,887



For the six months ended June 30, 2013 (in thousands):
 
Sales
 
Rental
 
Service & Maintenance
 
Corporate
 
Total
Revenue
11,164

 
32,728

 
349

 
$

 
$
44,241

Operating costs and expenses
6,482

 
13,070

 
153

 
12,555

 
32,260

Other income (expense)

 

 

 
226

 
226

Income before provision for income taxes
$
4,682

 
$
19,658

 
$
196

 
$
(12,329
)
 
$
12,207


For the six months ended June 30, 2012 (in thousands):
 
Sales
 
Rental
 
Service & Maintenance
 
Corporate
 
Total
Revenue
$
23,080

 
$
27,409

 
$
395

 
$

 
$
50,884

Operating costs and expenses
17,118

 
11,383

 
191

 
11,741

 
40,433

Other income (expense)

 

 

 
94

 
94

Income before provision for  income taxes
$
5,962

 
$
16,026

 
$
204

 
$
(11,647
)
 
$
10,545