Deferred revenue, amortization period

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Research and development arrangement, contract to perform for others, receivable.

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No definition available.

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Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer.

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Exercise price per share or per unit of warrants or rights outstanding.

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Number of warrants or rights outstanding.

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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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Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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Amount of cumulative effect of the change in accounting principle or new accounting pronouncement on retained earnings or other components of equity or net assets in the statement of financial position as of the beginning of the earliest period presented.

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Amount of the effect of a change in accounting principle on net income.

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Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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The amount of a reclassification adjustment made to prior period financial statement amounts.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Summary of Significant Accounting Policies (Details Narrative) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Mar. 05, 2018	Jan. 02, 2018
Restricted cash
Effect on accumulated deficit				$ 300,000
Effect on income
Deferred revenue, amortization period	1 year
Remaining performance obligation	$ 2,800,000
Revenue recognized	5,500,000	8,000,000
Capitalized contract acquisition costs	300,000
Research and development receivables
Options and stock appreciation rights	1,165,086	413,301
Weighted average exercise price	$ 2.54	$ 9.04
Exercise price of warrants	$ 0.70
Revenues	$ 29,346,617	$ 31,144,100
Future minimum operating lease commitments	$ 7,103,355
Research and Development Expense [Member]
Reclassification amount		1,900,000
Selling and Marketing Expense [Member]
Reclassification amount		$ 600,000
Stock Option [Member]
Options and stock appreciation rights	1,165,086
Weighted average exercise price	$ 2.54
Warrant [Member]
Common stock issuable upon exercise, warrants	1,131,151
Exercise price of warrants	$ 0.70
Series A Convertible Preferred Stock [Member]
Options and stock appreciation rights	41,743,654
Restricted Stock Units [Member]
Unvested restricted shares
Revenue from System Delivery and Installation [Member]
Revenues percentage	5.00%	13.00%
Disposable Revenue [Member]
Revenues percentage	33.00%	33.00%
Royalty Revenue [Member]
Revenues percentage	10.00%	10.00%
Other Recurring Revenue [Member]
Revenues percentage	52.00%	44.00%
Sales Revenue [Member] \| Country Other Than U.S. [Member]
Revenues percentage	10.00%
Sales Revenue [Member] \| Biosense Webster Inc [Member] \| Customer Concentration Risk [Member]
Revenues percentage	10.00%	11.00%
Revenues	$ 2,900,000	$ 3,300,000
Sales Revenue [Member] \| Customer [Member] \| Customer Concentration Risk [Member]
Revenues percentage	10.00%
Minimum [Member]
Property and equipment, estimated useful lives	3 years
Intangible assets, estimated useful lives	10 years
Share-based compensation, requisite service period	1 year
Exercise price of warrants			$ 0.28
Future minimum operating lease commitments	$ 6,000,000
Maximum [Member]
Property and equipment, estimated useful lives	10 years
Intangible assets, estimated useful lives	15 years
Share-based compensation, requisite service period	4 years
Exercise price of warrants			$ 0.70
Future minimum operating lease commitments	$ 7,000,000