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Summary of Operations and Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Schedule of Receivables
The following tables show the receivables balances:
 
 
As of December 31,
(in thousands)
 
2016
 
2015
Receivables
 
$
4,289

 
$
8,518

Other Receivables
 
4,559

 
—

Less: Allowance for doubtful accounts
 
(200
)
 
(157
)
Total
 
$
8,648

 
$
8,361

 
 
 
 
 
 
 
As of December 31,
(in thousands)
 
2016
 
2015
Receivables, related parties
 
$
1,934

 
$
1,918

Total
 
$
1,934

 
$
1,918
Schedule of Intangible Assets
 
 
Years Ended December 31,
 
 
2016
 
2015
(in thousands, except years)
 
Weighted-Average Amortization Period (in years)
 
Initial Cost
 
Net of Accumulated Amortization
 
Initial Cost
 
Net of Accumulated Amortization
Patents
 
16
 
$
913

 
$
696

 
$
742

 
$
581

Licensed technology
 
0
 
1,525

 
—

 
1,525

 
1,360

Total
 
16
 
$
2,438

 
$
696

 
$
2,267

 
$
1,941
Calculations of Basic and Diluted Earnings Per Share
The following table sets forth the calculations of basic and diluted earnings (loss) per common share:
 
 
Years Ended December 31,
(in thousands, except per share amounts)
 
2016
 
2015
 
2014
Net income (loss)
 
$
97,678

 
$
(30,141
)
 
$
1,387

Less: Undistributed income (loss) allocated to participating securities
 
1,105

 
(275
)
 
18

Income (loss) attributable to common stockholders
 
$
96,573

 
$
(29,866
)
 
$
1,369


 


 


 


Basic weighted-average number of common shares outstanding
 
21,931

 
21,773

 
21,554

Add: dilutive effect of equity instruments
 
303

 
—

 
525

Diluted weighted-average number of common shares outstanding
 
22,234

 
21,773

 
22,079

Earnings (loss) per share - basic
 
$
4.40

 
$
(1.37
)
 
$
0.06

Earnings (loss) per share - diluted
 
$
4.34

 
$
(1.37
)
 
$
0.06
Schedule of Anti-dilutive Equity Instruments
The table below presents the number of Potential dilutive shares that were excluded from the calculation of diluted loss per share because their inclusion would have been anti-dilutive:
 
 
Years Ended December 31,
(share data in thousands)
 
2016
 
2015
 
2014
Stock options
 
—

 
10

 
—

Restricted stock awards
 
—

 
163

 
—

Performance share units
 
—

 
182

 
—

Total shares excluded from diluted shares outstanding
 
—

 
355

 
—