Income Taxes (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Reconciliation of income tax expense at the statutory rate to income tax expense at Entity's effective tax rate
Effective tax rate	22.62%	22.67%
Tax Expense (Benefit) Computed at 22.62% and 22.67% of Pretax Income (Loss)	$ (6,744,000)	$ (6,373,000)
Changes in Tax Laws	0	0
Foreign Income Tax Expense	0	0
Effect of Change in Valuation Allowance	6,744,000	6,373,000
Total Income Tax Expense	0	0
Deferred tax assets:
Net Operating Loss Carryforward	66,895,000	59,586,000
Stock Based Compensation	7,726,000	7,582,000
Deferred Revenue	1,846,000	2,310,000
General Business Credit	6,872,000	6,872,000
Accrued Expenses	174,000	185,000
Inventories	88,000	666,000
Book over Tax Depreciation	6,000	25,000
Other Deferred Tax Assets	865,000	387,000
Total Deferred Tax Assets	84,472,000	77,613,000
Deferred Tax Liabilities:
Goodwill & Intangible Assets	183,000	155,000
Prepaid Expenses	381,000	294,000
Total Deferred Tax Liabilities	564,000	449,000
Subtotal	83,908,000	77,164,000
Valuation Allowance	(83,908,000)	(77,164,000)
Net Deferred Tax Asset	0	0
Net operating loss carryforwards	294,800,000
Income tax expense (benefit)	0	$ 0
Excess tax benefits on share based compensation that would be credited directly to contributed capital, if recognized	$ 4,200,000