Revenue Recognition (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Total Net Sales	$ 3,493,000	$ 4,435,000	$ 14,975,000	$ 12,428,000
Products and Services Transferred Over Time
Total Net Sales	1,482,000	2,024,000	5,366,000	7,366,000
Products and Services Transferred at a Point in Time
Total Net Sales	2,011,000	2,411,000	9,609,000	5,062,000
Services
Total Net Sales	3,493,000	4,317,000	14,975,000	11,850,000
Services | Products and Services Transferred Over Time
Total Net Sales	1,482,000	2,024,000	5,366,000	7,366,000
Services | Products and Services Transferred at a Point in Time
Total Net Sales	2,011,000	2,293,000	9,609,000	4,484,000
Products
Total Net Sales	0	118,000	0	578,000
Products | Products and Services Transferred Over Time
Total Net Sales	0	0	0	0
Products | Products and Services Transferred at a Point in Time
Total Net Sales	$ 0	$ 118,000	$ 0	$ 578,000