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Intangible Assets (Tables)
12 Months Ended
Dec. 31, 2020
Disclosure Of Intangible Assets [Abstract]  
Summary of Intangible Assets

 

 

Patents

 

 

Computer

Software

 

 

Total

 

 

 

(in thousands)

 

 

 

£

 

£

 

 

£

 

Cost:

 

 

 

 

 

 

 

 

 

 

 

 

At December 31, 2018

 

 

3,524

 

 

 

158

 

 

 

3,682

 

Additions

 

 

999

 

 

 

216

 

 

 

1,215

 

At December 31, 2019

 

 

4,523

 

 

 

374

 

 

 

4,897

 

Accumulated amortization:

 

 

 

 

 

 

 

 

 

 

 

 

At December 31, 2018

 

 

498

 

 

 

62

 

 

 

560

 

Charge for the year

 

 

308

 

 

 

69

 

 

 

377

 

At December 31, 2019

 

 

806

 

 

 

131

 

 

 

937

 

Cost:

 

 

 

 

 

 

 

 

 

 

 

 

At December 31, 2019

 

 

4,523

 

 

 

374

 

 

 

4,897

 

Additions

 

 

1,262

 

 

 

9

 

 

 

1,271

 

At December 31, 2020

 

 

5,785

 

 

 

383

 

 

 

6,168

 

Accumulated amortization:

 

 

 

 

 

 

 

 

 

 

 

 

At December 31, 2019

 

 

806

 

 

 

131

 

 

 

937

 

Charge for the year

 

 

383

 

 

 

95

 

 

 

478

 

At December 31, 2020

 

 

1,189

 

 

 

226

 

 

 

1,415

 

Net book value:

 

 

 

 

 

 

 

 

 

 

 

 

At December 31, 2020

 

 

4,596

 

 

 

157

 

 

 

4,753

 

At December 31, 2019

 

 

3,717

 

 

 

243

 

 

 

3,960