Summary of Significant Accounting Policies (Details Narrative) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Allowance for doubtful accounts receivable	$ 67,000				$ 87,000				$ 67,000	$ 87,000
Impairment losses
Research and development costs	1,882,000	$ 1,696,000	$ 1,542,000	$ 1,743,000	$ 1,066,000	$ 1,108,000	$ 997,000	$ 1,367,000	6,863,000	4,538,000	$ 5,235,000
Stock-based compensation expense									2,163,000	2,437,000	1,658,000
Interest or penalty
Advertising and marketing expense									996,000	$ 538,000	$ 510,000
Right-of-use assets	2,800,000								2,800,000
Lease liabilities	2,800,000								2,800,000
ASU 2016-02 [Member]
Right-of-use assets	3,200,000								3,200,000
Lease liabilities	$ 3,200,000								$ 3,200,000
Internal-use Software [Member]
Fixed assets estimated useful life									3 years
Minimum [Member]
Deferred revenue and cost recognition for the service contract life									1 year
Customer service contract life, term									1 year
Fixed assets estimated useful life									3 years
Maximum [Member]
Deferred revenue and cost recognition for the service contract life									5 years
Customer service contract life, term									5 years
Fixed assets estimated useful life									10 years