PROPERTY AND EQUIPMENT, NET
 12 Months Ended
Dec. 31, 2021
PROPERTY AND EQUIPMENT, NET:  
PROPERTY AND EQUIPMENT, NET:

4. PROPERTY AND EQUIPMENT, NET:

Property and equipment - net, consist of the following:

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Depreciation/

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Amortization

December 31, 

    

2021

    

2020

    

Period

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​

​

​

​

​

​

​

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Furniture and fixtures

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$

1,424,476

​

$

1,081,366

 

7 years

Equipment and computers

​

 

5,863,673

​

 

4,318,323

 

3 to 7 years

Leasehold improvements

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2,623,356

​

 

971,247

 

Lesser of term of lease or estimated useful life

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​

 

9,911,505

​

 

6,370,936

 

  

Less accumulated depreciation and amortization

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4,760,619

​

 

4,251,009

 

  

Property and Equipment, Net

​

$

5,150,886

​

$

2,119,927

 

  

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Depreciation expense for the years ended December 31, 2021, 2020 and 2019 amounted to $542,689, $553,946 and $495,728 respectively.