Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2023

Accounting Policies [Abstract]

Investment, Policy [Policy Text Block]

Investments in Debt Securities

The Company will invest excess funds to maximize investment yield, while maintaining liquidity and minimizing credit risk. Debt securities are carried at fair value and consist primarily of investments in obligations of the United States Treasury, various U.S. and foreign corporations, and certificates of deposits. The Company classifies its investments in debt securities as available-for-sale with all unrealized gains or losses included as part of other comprehensive income. The Company evaluates its debt securities with unrealized losses on a quarterly basis for potential other-than-temporary impairments in value. As a result of this assessment, the Company did not recognize any other-than-temporary impairment losses considered to be credit related for the three months ended March 31, 2023 and 2022.

Fair Value Measurement, Policy [Policy Text Block]

Fair Value Measurements

The estimated fair values of financial instruments reported in the consolidated financial statements have been determined using available market information and valuation methodologies, as applicable. The fair value of cash and restricted cash approximate their carrying value due to their short maturities and are classified as Level 1 instruments within the fair value hierarchy.

Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Entities are required to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value based upon the following fair value hierarchy:

Level 1 — Quoted prices in active markets for identical assets or liabilities;

Level 2 — Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities; and

Level 3 — Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.

As of March 31, 2023, the following table represents the Company’s fair value hierarchy for items that are required to be measured at fair value on a recurring basis:

	Fair Value		Level 1		Level 2		Level 3
Investments in debt securities (short-term)	$	4,700	$	876	$	3,824	$	-
Investments in debt securities (long-term)		12,570		10,458		2,112		-

As of December 31, 2022, the following table represents the Company’s fair value hierarchy for items that are required to be measured at fair value on a recurring basis:

	Fair Value		Level 1		Level 2		Level 3
Investments in debt securities (short-term)	$	16,436	$	13,661	$	2,775	$	-
Investments in debt securities (long-term)		5,645		1,555		4,090		-

Lessee, Leases [Policy Text Block]

Leases

The Company leases its manufacturing facility under a long-term contract, which is accounted for as an operating lease. The lease provides for a fixed base rent and variable payments comprised of reimbursements for property taxes, insurance, utilities, and common area maintenance. The lease has a term of sixty-two months, exclusive of options to renew. In accordance with ASC 842, Leases, lease income, which includes escalating rents over the term of the lease, is recorded on a straight-line basis over the expected lease term. The difference between lease income and payments received is recorded as a rent receivable, which is included as a prepaid expense in the consolidated balance sheets. Amounts paid for broker commissions represent prepaid direct lease costs, and will be amortized as an off-set to lease income over the lease term.

New Accounting Pronouncements, Policy [Policy Text Block]

Other Recent Pronouncements

Other recent accounting pronouncements issued by the FASB (including its Emerging Issues Task Force) and the SEC did not or are not believed by management to have a material impact on the Company's present or future consolidated financial statements.