​

​

March 31, 

​

December 31, 

​

​

2026

​

2025

Prepaid expenses

​

$

431

​

$

399

Restricted cash equivalents

​

​

100

​

​

100

Prepaid inventory purchases and deposits

  ​ ​ ​

​

108

  ​ ​ ​

​

—

Other receivables

​

268

​

327

Total other current assets

​

$

907

​

$

826