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Discontinued Operations
6 Months Ended
Jun. 30, 2023
Discontinued Operations and Disposal Groups [Abstract]  
Discontinued Operations Discontinued Operations
During the third quarter of 2022, the Company sold its inertial navigation business. The Company determined that the sale met the requirements for reporting as discontinued operations in accordance with Accounting Standards Codification (ASC) 205-20. There were no assets or liabilities of the inertial navigation business as of December 31, 2022 or June 30, 2023. Please see Note 1 for further discussion.

The following table presents a reconciliation of the major financial line items constituting the results for discontinued operations to the net income from discontinued operations, net of tax, presented separately in the Company's consolidated statement of operations for the three and six months ended 2022:

Three Months EndedSix Months Ended
June 30,June 30,
20222022
Sales:
Product$6,959 $14,766 
Service325 461 
Net sales7,284 15,227 
Costs and expenses:
Costs of product sales5,917 11,228 
Costs of service sales222 288 
Research and development1,135 2,773 
Sales, marketing and support1,299 2,687 
Loss from discontinued operations before income tax expense(1,289)(1,749)
Other income, net34 69 
Loss from discontinued operations before tax expense$(1,255)$(1,680)
Income tax expense on discontinued operations— — 
Net loss from discontinued operations, net of tax$(1,255)$(1,680)
Net loss from discontinued operations per common share
Basic$(0.07)$(0.09)
Diluted$(0.07)$(0.09)
Weighted average number of common shares outstanding:
Basic18,564 18,507 
Diluted18,564 18,507 

The following table presents supplemental cash flow information of the discontinued operations:
Three Months EndedSix Months Ended
June 30,June 30,
20222022
Cash used in operating activities - discontinued operations$(3,967)$(3,601)
Cash provided by (used in) investing activities - discontinued operations$35 $(87)
The following table presents non-cash expenses from discontinued operations:

Three Months EndedSix Months Ended
June 30,June 30,
20222022
Depreciation$223 $531 
Compensation expense related to stock-based awards and employee stock purchase plan$91 $238