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Restricted Cash	3 Months Ended
	Mar. 31, 2020
Receivables [Abstract]
Restricted Cash	(4) RESTRICTED CASH At the commencement date of the Company’s lease for its corporate headquarters on December 1. 2018, the Company’s bank, Avidbank, issued a $250,000 letter of credit to the lessor as security, which amount will be reduced by $50,000 on December 1 of each year beginning on December 1, 2019, provided there has been no default under the lease. Avidbank required the Company to deposit $250,000 in a restricted cash account maintained with the bank, which amount will be reduced as the amount required under the letter of credit is reduced. The Company recorded the $250,000 deposit as restricted cash on its balance sheet, with $50,000 plus any earned interest being recorded in short-term restricted cash and the balance being recorded in long-term restricted cash. The amount deposited in the restricted cash account does not count toward the covenant in the Avidbank loan and security agreement (see Note 9) that requires the Company to have an aggregate amount of unrestricted cash in deposit accounts or securities accounts maintained with Avidbank of not less than $2,000,000 at all times.

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- Definition

The entire disclosure for assets that are restricted in their use, generally by contractual agreements or regulatory requirements. This would include, but not limited to, a description of the restricted assets and the terms of the restriction.

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