The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Note 6 - Goodwill and Intangible Assets (Details Textual) - USD ($)		3 Months Ended		6 Months Ended
	Apr. 01, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Goodwill, Purchase Accounting Adjustments				$ (131,000)
Increase (Decrease) in Accounts Payable, Total				63,000	$ (36,000)
Amortization of Intangible Assets, Total		$ 706,000	$ 104,000	1,394,000	$ 104,000
In Process Research and Development [Member]
Finite-Lived Intangible Assets, Period Increase (Decrease), Total	$ (650,000)
Technology-Based Intangible Assets [Member]
Finite-Lived Intangible Assets, Period Increase (Decrease), Total	$ 650,000
CBS Acquisition [Member] \| Immaterial Error [Member]
Goodwill, Purchase Accounting Adjustments				(131,000)
Increase (Decrease) in Accounts Payable, Total				$ (131,000)