Income Taxes (Tables)

12 Months Ended

Dec. 31, 2022

Income Tax Disclosure [Abstract]

Schedule of reconciliation of income tax expense at the statutory rate to income tax expense at Entity's effective tax rate

A reconciliation of income tax expense at the statutory rate to income tax expense at our effective tax rate is as follows (dollars in thousands):

	2022		2021
Tax Expense (Benefit) Computed at 22.68% and 22.62% of Pretax Income (Loss)	$	(4,361)	$	(6,744)
Changes in Tax Laws	—		—
Foreign Income Tax Expense	—		—
Effect of Change in Valuation Allowance	4,361		6,744
Total Income Tax Expense	$	—	$	—

Schedule of details of the net deferred tax asset

The details of the net deferred tax asset are as follows (dollars in thousands):

	December 31,
	2022		2021
Deferred tax assets:
Net Operating Loss Carryforward	$	70,686	$	66,895
Stock Based Compensation	7,792		7,726
Deferred Revenue	983		1,846
General Business Credit	6,872		6,872
Accrued Expenses	605		174
Inventories	234		88
Book over Tax Depreciation	—		6
Research & Experimental Expenses	371		—
Other Deferred Tax Assets	1,274		865
Total Deferred Tax Assets	88,817		84,472
Deferred Tax Liabilities:
Book over Tax Depreciation	8		—
Goodwill & Intangible Assets	224		183
Prepaid Expenses	316		381
Total Deferred Tax Liabilities	548		564
Subtotal	88,269		83,908
Valuation Allowance	(88,269)		(83,908)
Net Deferred Tax Asset	$	—	$	—