INCOME TAXES, Deferred Tax Assets and Liabilities (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Deferred tax assets:
U.S. federal and state net operating losses	$ 6,385,000	$ 7,567,000
Foreign net operating losses	73,000	0
Allowance for doubtful accounts	275,000	287,000
Interest expense carryforwards	0	2,525,000
Share-based compensation	897,000	294,000
Accrued compensation	279,000	281,000
Deferred revenue	653,000	0
Accrued TCPA claim	880,000	0
Other	0	213,000
Total deferred tax assets	9,442,000	11,167,000
Deferred tax liabilities
Depreciation	(1,918,000)	(1,134,000)
Intangible amortization	(6,710,000)	(7,766,000)
Total deferred tax liabilities	(8,628,000)	(8,900,000)
Valuation allowance	(73,000)	0
Net deferred tax asset	741,000	2,267,000
Domestic Tax Authority
Deferred tax liabilities
Valuation allowance	0	0
State and Local Jurisdiction
Deferred tax liabilities
Valuation allowance	$ 0	$ 0