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Long-Term Debt (Schedule of paycheck protection program loan liabilities) (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Long-Term Debt
Current portion of the PPP Loan included under short-term debt	$ 874	$ 312
Long-term portion of the PPP Loan included under long-term debt	625	1,187
Liability component total	$ 1,499	$ 1,499

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Including the current and noncurrent portions, carrying value as of the balance sheet date of loans from a bank with maturities initially due after one year or beyond the normal operating cycle if longer.

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Carrying value as of the balance sheet date of current portion of long-term loans payable to bank due within one year or the operating cycle if longer.

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Carrying value as of the balance sheet date of loans from a bank with maturities initially due after one year or beyond the operating cycle if longer, excluding current portion.

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