CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Net loss	$ (4,968,000)	$ (4,843,000)
Other comprehensive income (loss):
Unrealized foreign currency translation gain	18,000	51,000
Change in unrecognized pension costs	1,051,000	(755,000)
Total other comprehensive income (loss), net of tax	1,069,000	(704,000)
Comprehensive loss	$ (3,899,000)	$ (5,547,000)