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Quarterly Results of Operations (Unaudited)
12 Months Ended
Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]  
Quarterly Results of Operations (Unaudited)
Quarterly Results of Operations (Unaudited)

The following is a summary of the unaudited quarterly results of operations for the years ended December 31, 2017, 2016 and 2015.
  
 
1st Quarter
 
2nd Quarter
 
3rd Quarter
 
4th Quarter
 
Total Year
2017:
 
 
 
 
 
 
 
 
 
Product sales
$
36,336,000

 
$
36,794,000

 
$
37,593,000

 
$
37,900,000

 
$
148,623,000

Tooling sales
410,000

 
10,574,000

 
901,000

 
1,165,000

 
13,050,000

Net sales
36,746,000

 
47,368,000

 
38,494,000

 
39,065,000

 
161,673,000

Gross margin
6,491,000

 
7,353,000

 
5,764,000

 
5,072,000

 
24,680,000

Operating income
2,566,000

 
3,185,000

 
1,406,000

 
833,000

 
7,990,000

Net income
1,688,000

 
2,162,000

 
855,000

 
754,000

 
5,459,000

Net income per common share:
 
 
 
 
 
 
 
 
 
   Basic (1)
$
0.22

 
$
0.28

 
$
0.11

 
$
0.10

 
$
0.71

   Diluted (1)
$
0.22

 
$
0.28

 
$
0.11

 
$
0.10

 
$
0.70

 
 
 
 
 
 
 
 
 
 
2016:
 
 
 
 
 
 
 
 
 
Product sales
$
42,530,000

 
$
36,813,000

 
$
33,816,000

 
$
33,465,000

 
$
146,624,000

Tooling sales
2,938,000

 
2,193,000

 
7,520,000

 
15,607,000

 
28,258,000

Net sales
45,468,000

 
39,006,000

 
41,336,000

 
49,072,000

 
174,882,000

Gross margin
8,863,000

 
6,323,000

 
5,581,000

 
7,157,000

 
27,924,000

Operating income
4,442,000

 
2,307,000

 
1,657,000

 
3,139,000

 
11,545,000

Net income
2,890,000

 
1,460,000

 
1,029,000

 
2,032,000

 
7,411,000

Net income per common share:
 
 
 
 
 
 
 
 
 
   Basic (1)
$
0.38

 
$
0.19

 
$
0.13

 
$
0.27

 
$
0.97

   Diluted (1)
$
0.38

 
$
0.19

 
$
0.13

 
$
0.26

 
$
0.97

 
 
 
 
 
 
 
 
 
 
2015:
 
 
 
 
 
 
 
 
 
Product sales
$
47,854,000

 
$
53,514,000

 
$
44,243,000

 
$
43,492,000

 
$
189,103,000

Tooling sales
1,745,000

 
1,342,000

 
3,806,000

 
3,072,000

 
9,965,000

Net sales
49,599,000

 
54,856,000

 
48,049,000

 
46,564,000

 
199,068,000

Gross margin
9,025,000

 
10,982,000

 
8,311,000

 
7,934,000

 
36,252,000

Operating income
4,890,000

 
6,232,000

 
3,902,000

 
3,474,000

 
18,498,000

Net income
3,196,000

 
4,039,000

 
2,484,000

 
2,331,000

 
12,050,000

Net income per common share:
 
 
 
 
 
 
 
 
 
   Basic (1)
$
0.42

 
$
0.53

 
$
0.33

 
$
0.31

 
$
1.59

   Diluted (1)
$
0.42

 
$
0.53

 
$
0.33

 
$
0.31

 
$
1.58


(1) Sum of the quarters may not sum to total year due to rounding.