Organization and Significant Accounting Policies (Details Narrative) - USD ($)	3 Months Ended	12 Months Ended
Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Revenue	$ 4,441,909	$ 3,338,163
Deferred revenue liability current	4,632,833		$ 4,708,575
Revenue recognized	712,708		649,120
Deposit insurance coverage limit	250,000
Uninsured cash and cash equivalents	$ 4,537,593		$ 6,338,896
One Federal Agency [Member] \| Total Net Sales [Member]
Concentration of credit risk	10.00%	17.00%
One Federal Agency [Member] \| Accounts Receivables [Member]
Concentration of credit risk	16.50%		8.50%
Foreign Agency [Member] \| Total Net Sales [Member]
Concentration of credit risk	22.00%
One State Agency [Member] \| Total Net Sales [Member]
Concentration of credit risk		15.00%
One State Agency [Member] \| Accounts Receivables [Member]
Concentration of credit risk			31.00%
State Agency One [Member] \| Accounts Receivables [Member]
Concentration of credit risk	11.50%
State Agency Two [Member] \| Accounts Receivables [Member]
Concentration of credit risk	11.00%
Warranty [Member] \| One Year or Less [Member]
Extended warranties	$ 1,962,982		$ 2,191,400
Warranty [Member] \| Longer Than One Year [Member]
Extended warranties	1,771,288		1,920,346
Warranty [Member] \| One Year [Member]
Extended warranties	352,000		352,000
Customer Deposits [Member]
Deferred revenue liability current	1,807,947		$ 2,517,175
Government Customers [Member]
Revenue	$ 2,935,718
Concentration of credit risk	66.00%
Commercial Customers [Member]
Revenue	$ 330,333	$ 72,350
Concentration of credit risk	7.00%	2.00%
International Customers [Member]
Revenue	$ 1,175,858	$ 347,120
Concentration of credit risk	27.00%	10.00%
Governmental Customers [Member]
Revenue		$ 2,918,693
Concentration of credit risk		87.00%

The amount of cash as of the balance sheet date that is not insured by the Federal Deposit Insurance Corporation.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

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Amount as of the balance sheet date of the aggregate extended product warranty liability. Does not include the ending balance for the standard product warranty liability.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Amount of time deposit liabilities, including certificates of deposit, in denominations that meet or exceed the Federal Deposit Insurance Corporation (FDIC) insurance limit.

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