Significant Accounting Policies (Narrative) (Details)
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12 Months Ended |
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Dec. 31, 2021
USD ($)
item
customer
$ / shares
shares
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Dec. 31, 2020
USD ($)
customer
shares
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Dec. 31, 2014
item
|
Dec. 31, 2019
$ / shares
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| Accounting Policies [Line Items] |
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| Total intangible amortization expense |
$ 8,000
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$ 9,000
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| Standard product warranty period |
1 year
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| Unbilled revenue, billed and collected, term |
1 year
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| Net income (loss) |
$ (5,206,000)
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(11,448,000)
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| Impairment loss of long-lived assets |
0
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| Advertising expense |
$ 0
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$ 0
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| Total potentially dilutive common stock equivalents | shares |
27,624,777
|
36,579,616
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| Net cash used in operating activities |
$ 7,431,000
|
$ 4,897,000
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| Cash and cash equivalents |
$ 5,724,000
|
8,315,000
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| Work status reduction program, percentage decrease in senior management compensation |
20.00%
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| Product Volume [Member] |
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| Accounting Policies [Line Items] |
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| Work in process and finished goods |
$ 600,000
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| Net income (loss) |
$ 600,000
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| Income (loss) per share, basic and diluted | $ / shares |
$ 0.01
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| Preferred Stock- Series B [Member] |
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| Accounting Policies [Line Items] |
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| Conversion price per share | $ / shares |
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|
$ 0.3022
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| Warrants [Member] | Measurement Input, Expected Dividend Rate [Member] |
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| Accounting Policies [Line Items] |
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| Measurement input | item |
0
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| Minimum [Member] |
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| Accounting Policies [Line Items] |
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| Payment term |
30 days
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| Accounts receivable, balance due |
30 days
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| Minimum [Member] | Warrants [Member] | Measurement Input, Expected Term [Member] |
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| Accounting Policies [Line Items] |
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| Expected term |
5 months 1 day
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| Minimum [Member] | Warrants [Member] | Measurement Input, Risk Free Interest Rate [Member] |
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| Accounting Policies [Line Items] |
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| Measurement input | item |
0.0095
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| Minimum [Member] | Warrants [Member] | Measurement Input, Price Volatility [Member] |
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| Accounting Policies [Line Items] |
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| Measurement input | item |
0.5776
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| Maximum [Member] |
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| Accounting Policies [Line Items] |
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| Payment term |
60 days
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| Accounts receivable, balance due |
60 days
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| Maximum [Member] | Warrants [Member] | Measurement Input, Expected Term [Member] |
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| Accounting Policies [Line Items] |
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| Expected term |
1 year 29 days
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| Maximum [Member] | Warrants [Member] | Measurement Input, Risk Free Interest Rate [Member] |
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| Accounting Policies [Line Items] |
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| Measurement input | item |
0.0123
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| Maximum [Member] | Warrants [Member] | Measurement Input, Price Volatility [Member] |
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| Accounting Policies [Line Items] |
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| Measurement input | item |
1.0371
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| Equipment [Member] | Minimum [Member] |
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| Accounting Policies [Line Items] |
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| Estimated useful life |
3 years
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| Equipment [Member] | Maximum [Member] |
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| Accounting Policies [Line Items] |
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| Estimated useful life |
10 years
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| Revolving Credit Facility [Member] |
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| Accounting Policies [Line Items] |
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| Outstanding amount on credit facility |
$ 1,974,000
|
$ 1,875,000
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| Remaining borrowing capacity |
$ 2,300,000
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| Larger Newer Displays [Member] |
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| Accounting Policies [Line Items] |
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| Maximum potential die per wafer amounts | item |
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|
42
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| Established Displays [Member] |
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| Accounting Policies [Line Items] |
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| Maximum potential die per wafer amounts | item |
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|
177
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| Revenues [Member] | Customer Concentration Risk [Member] | One Customer [Member] |
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| Accounting Policies [Line Items] |
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| Number of customers | customer |
1
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| Concentration risk percentage |
28.70%
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| Revenues [Member] | Customer Concentration Risk [Member] | Three Customers [Member] |
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| Accounting Policies [Line Items] |
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| Number of customers | customer |
|
3
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| Revenues [Member] | Customer Concentration Risk [Member] | Customer One [Member] |
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| Accounting Policies [Line Items] |
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| Concentration risk percentage |
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16.90%
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| Revenues [Member] | Customer Concentration Risk [Member] | Customer Two [Member] |
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| Accounting Policies [Line Items] |
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| Concentration risk percentage |
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12.80%
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| Revenues [Member] | Customer Concentration Risk [Member] | Customer Three [Member] |
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| Accounting Policies [Line Items] |
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| Concentration risk percentage |
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10.90%
|
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| Accounts Receivable [Member] | Customer Concentration Risk [Member] | One Customer [Member] |
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| Accounting Policies [Line Items] |
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| Number of customers | customer |
1
|
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| Concentration risk percentage |
50.30%
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| Accounts Receivable [Member] | Customer Concentration Risk [Member] | Three Customers [Member] |
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| Accounting Policies [Line Items] |
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| Number of customers | customer |
|
3
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| Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer One [Member] |
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| Accounting Policies [Line Items] |
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| Concentration risk percentage |
|
22.00%
|
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| Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer Two [Member] |
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| Accounting Policies [Line Items] |
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| Concentration risk percentage |
|
17.00%
|
|
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| Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer Three [Member] |
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| Accounting Policies [Line Items] |
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| Concentration risk percentage |
|
9.50%
|
|
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| Preferred Stock- Series B [Member] |
|
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| Accounting Policies [Line Items] |
|
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| Total potentially dilutive common stock equivalents | shares |
18,726,009
|
18,726,009
|
|
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