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Property, plant and equipment and construction in progress
12 Months Ended
Dec. 31, 2025
Property, plant and equipment and construction in progress  
Property, plant and equipment and construction in progress

7. Property, plant and equipment and construction in progress

December 31, 

  ​ ​ ​

2025

  ​ ​ ​

2024

Land

$

5,903,738

$

5,903,738

Land improvement

1,639,615

403,351

Buildings

 

27,552,216

 

26,033,866

Plant and equipment

 

59,933,437

 

61,089,877

Distribution system

 

40,639,053

 

40,402,691

Office furniture, fixtures and equipment

 

3,398,386

 

3,277,313

Vehicles

 

5,072,211

 

3,830,539

Leasehold improvements

 

306,545

 

306,545

Lab equipment

 

7,404

 

12,456

 

144,452,605

 

141,260,376

Less accumulated depreciation

 

89,300,847

 

88,828,094

Property, plant and equipment, net

$

55,151,758

$

52,432,282

Construction in progress

$

6,695,656

$

5,143,717

The Company maintains insurance for loss or damage to all fixed assets that it deems susceptible to loss. During the years ended December 31, 2025, and 2024, $5,883,845 and $1,395,485, respectively, of construction in progress was placed in service. Depreciation expense was $6,128,825, $5,855,935 and $5,823,008 for the years ended December 31, 2025, 2024 and 2023, respectively.