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Short-Term Investments
 12 Months Ended
Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]  
Short-Term Investments

4. Short-term Investments

The following table summarizes the Company’s short-term investments (in thousands):

 

 

 

Maturity

 

Amortized

 

 

Unrealized

 

 

Unrealized

 

 

Estimated

 

 

 

(in years)

 

Cost

 

 

Gains

 

 

Losses

 

 

Fair Value

 

December 31, 2022

 

 

 

 

 

 

 

 

 

 

 

 

 

 

U.S. treasury securities

 

1 or less

 

$

12,006

 

 

$

-

 

 

$

(90

)

 

$

11,916

 

Total

 

 

 

$

12,006

 

 

$

-

 

 

$

(90

)

 

$

11,916

 

December 31, 2021

 

 

 

 

 

 

 

 

 

 

 

 

 

 

U.S. treasury securities

 

1 or less

 

$

17,122

 

 

 

 

 

 

(7

)

 

$

17,115

 

U.S. treasury securities

 

>1 and <5

 

 

12,049

 

 

 

 

 

 

(43

)

 

 

12,006

 

Certificates of deposit

 

1 or less

 

 

1,226

 

 

 

 

 

 

(2

)

 

 

1,224

 

Total

 

 

 

$

30,397

 

 

$

-

 

 

$

(52

)

 

$

30,345

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

All of the Company’s available-for-sale securities are available to the Company for use in its current operations. As a result, the Company categorizes all of these securities as current assets even though the stated maturity of some individual securities may be one year or more beyond the balance sheet date. All of the Company’s securities have a maturity within two years of the balance sheet date.

There were no impairments considered other-than-temporary during the periods presented, as it is management’s intention and ability to hold the securities until a recovery of the cost basis or recovery of fair value. Unrealized gains and losses are included in accumulated other comprehensive income (loss).