BALANCE SHEET DETAILS - Schedule of Other Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Other current liabilities:
Accrued contract costs		$ 140
Warranty costs	$ 54	90
Accrued professional fees	685	1,074
Accrued other taxes	376	1,063
Other	2,930	2,381
Total other current liabilities	$ 4,045	$ 4,748

Carrying value as of the balance sheet date of obligations incurred and payable for real and property taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers. For classified balance sheets, represents the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Represents the carrying value, as of the balance sheet date, of obligations incurred through that date and payable for contract costs. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle, if longer).

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